CBSE Class 12 Physics 2026 question paper (55/5)

1. A.
   attract with a force $\dfrac{F}{2}$
2. B.
   repel with a force $\dfrac{F}{2}$
3. C.
   repel with a force F
4. D.
   attract with a force F

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1. A.
   P
2. B.
   Q
3. C.
   R
4. D.
   S

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1. A.
   $\dfrac{\mu_0 I}{\pi a}$ and directed along OC
2. B.
   $\dfrac{\mu_0 I}{\pi a \sqrt{2}}$ and directed along OD
3. C.
   $\dfrac{\mu_0 I \sqrt{2}}{\pi a}$ and directed along OB
4. D.
   $\dfrac{2 \mu_0 I}{\pi a}$ and directed along OA

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1. A.
   area of the loop only
2. B.
   the value of magnetic field only
3. C.
   orientation of the loop in the magnetic field only
4. D.
   any one or more of the factors given in (A), (B) and (C)

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1. A.
   Production of ac is economical.
2. B.
   ac can be easily and efficiently converted from one voltage to the other.
3. C.
   ac can be transmitted economically over long distances.
4. D.
   ac is less dangerous.

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1. A.
   $0{\cdot}5 \times 10^{3}\ \mathrm{m^{-1}}$
2. B.
   $6{\cdot}0 \times 10^{2}\ \mathrm{m^{-1}}$
3. C.
   $7{\cdot}5 \times 10^{2}\ \mathrm{m^{-1}}$
4. D.
   $1{\cdot}5 \times 10^{3}\ \mathrm{m^{-1}}$

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1. A.
   Red light
2. B.
   Yellow light
3. C.
   Green light
4. D.
   Blue light

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1. A.
   Isobars
2. B.
   Isotones
3. C.
   Isotopes
4. D.
   Isomers

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1. A.
   $6{\cdot}0$ fm
2. B.
   30 fm
3. C.
   72 fm
4. D.
   150 fm

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1. A.
   $\dfrac{3h}{2\pi}$
2. B.
   $\dfrac{2h}{\pi}$
3. C.
   $\dfrac{h}{\pi}$
4. D.
   $\dfrac{h}{2\pi}$

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1. A.
   high resistance in reverse bias and a low resistance in forward bias
2. B.
   high resistance in both forward bias and reverse bias
3. C.
   low resistance in both reverse bias and forward bias
4. D.
   high resistance in forward bias and low resistance in reverse bias

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1. A.
   $\dfrac{V_0}{2}, \dfrac{V_0}{\sqrt{2}}$
2. B.
   $\dfrac{V_0}{\pi}, \dfrac{V_0}{2}$
3. C.
   $\dfrac{V_0}{\sqrt{2}}, 0$
4. D.
   $V_0, \dfrac{V_0}{\sqrt{2}}$

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1. A.
   Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
2. B.
   Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
3. C.
   Assertion (A) is true, but Reason (R) is false.
4. D.
   Both Assertion (A) and Reason (R) are false.

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1. A.
   Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
2. B.
   Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
3. C.
   Assertion (A) is true, but Reason (R) is false.
4. D.
   Both Assertion (A) and Reason (R) are false.

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1. A.
   Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
2. B.
   Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
3. C.
   Assertion (A) is true, but Reason (R) is false.
4. D.
   Both Assertion (A) and Reason (R) are false.

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1. A.
   Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
2. B.
   Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
3. C.
   Assertion (A) is true, but Reason (R) is false.
4. D.
   Both Assertion (A) and Reason (R) are false.

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1. A.
   $\left(2 \times 10^{2}\ \dfrac{\mathrm{V}}{\mathrm{m}}\right)\hat{k}$
2. B.
   $-\left(2 \times 10^{2}\ \dfrac{\mathrm{V}}{\mathrm{m}}\right)\hat{k}$
3. C.
   $\left(2 \times 10^{4}\ \dfrac{\mathrm{V}}{\mathrm{m}}\right)\hat{k}$
4. D.
   $-\left(2 \times 10^{4}\ \dfrac{\mathrm{V}}{\mathrm{m}}\right)\hat{k}$

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1. A.
   $-(3{\cdot}5 \times 10^{15}\ \mathrm{ms^{-2}})\ \hat{k}$
2. B.
   $(3{\cdot}5 \times 10^{15}\ \mathrm{ms^{-2}})\ \hat{k}$
3. C.
   $(3{\cdot}5 \times 10^{13}\ \mathrm{ms^{-2}})\ \hat{i}$
4. D.
   $-(3{\cdot}5 \times 10^{13}\ \mathrm{ms^{-2}})\ \hat{i}$

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1. A.
   $9{\cdot}0 \times 10^{-9}$ s
2. B.
   $1{\cdot}67 \times 10^{-8}$ s
3. C.
   $1{\cdot}67 \times 10^{-9}$ s
4. D.
   $2{\cdot}17 \times 10^{-9}$ s

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1. A.
   10 mm
2. B.
   $4{\cdot}9$ mm
3. C.
   $5{\cdot}9$ mm
4. D.
   $3{\cdot}0$ mm

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1. A.
   a
2. B.
   b
3. C.
   c
4. D.
   d

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1. A.
   Wave nature of light
2. B.
   Particle nature of light
3. C.
   Transverse nature of light
4. D.
   Both wave nature and transverse nature of light

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1. A.
   720 nm
2. B.
   590 nm
3. C.
   480 nm
4. D.
   364 nm

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1. A.
   $1{\cdot}2$ mm
2. B.
   $0{\cdot}2$ mm
3. C.
   $4{\cdot}2$ mm
4. D.
   $6{\cdot}8$ mm

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1. A.
   $8{\cdot}1 \times 10^{-7}$ m
2. B.
   $7{\cdot}2 \times 10^{-7}$ m
3. C.
   $6{\cdot}5 \times 10^{-7}$ m
4. D.
   $6{\cdot}0 \times 10^{-7}$ m

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1. A.
   disappear
2. B.
   become blurred
3. C.
   be widened
4. D.
   be compressed

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1. A.
   $\dfrac{3h}{2\pi}$
2. B.
   $\dfrac{2h}{\pi}$
3. C.
   $\dfrac{h}{\pi}$
4. D.
   $\dfrac{h}{2\pi}$

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1. A.
   $1{\cdot}66 \times 10^{-32}\ \mathrm{kg\ ms^{-1}}$
2. B.
   $1{\cdot}83 \times 10^{-34}\ \mathrm{kg\ ms^{-1}}$
3. C.
   $2{\cdot}05 \times 10^{-34}\ \mathrm{kg\ ms^{-1}}$
4. D.
   $1{\cdot}66 \times 10^{-34}\ \mathrm{kg\ ms^{-1}}$

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1. A.
   $6{\cdot}0$ fm
2. B.
   30 fm
3. C.
   72 fm
4. D.
   150 fm

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1. A.
   $\dfrac{V_0}{2}, \dfrac{V_0}{\sqrt{2}}$
2. B.
   $\dfrac{V_0}{\pi}, \dfrac{V_0}{2}$
3. C.
   $\dfrac{V_0}{\sqrt{2}}, 0$
4. D.
   $V_0, \dfrac{V_0}{\sqrt{2}}$

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1. A.
   high resistance in reverse bias and a low resistance in forward bias
2. B.
   high resistance in both forward bias and reverse bias
3. C.
   low resistance in both reverse bias and forward bias
4. D.
   high resistance in forward bias and low resistance in reverse bias

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1. A.
   $\dfrac{1}{4\pi\varepsilon_0}\dfrac{\sqrt{2}\,\mathrm{Q}}{d^2}(\hat{i} - \hat{j})$
2. B.
   $\dfrac{1}{4\pi\varepsilon_0}\dfrac{\sqrt{2}\,\mathrm{Q}}{d^2}(-\hat{i} - \hat{j})$
3. C.
   $\dfrac{1}{4\pi\varepsilon_0}\dfrac{\mathrm{Q}}{d^2}(\hat{i} - \hat{j})$
4. D.
   $\dfrac{1}{4\pi\varepsilon_0}\dfrac{\mathrm{Q}}{d^2}(-\hat{i} - \hat{j})$

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1. A.
   describe a circular path
2. B.
   describe a helical path
3. C.
   describe a parabolic path
4. D.
   continue moving without any deviation

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1. A.
   $\dfrac{\mathrm{KB}^2}{2\mathrm{E}^2}$
2. B.
   $\dfrac{2\mathrm{KB}^2}{\mathrm{E}^2}$
3. C.
   $\dfrac{2\mathrm{KE}^2}{\mathrm{B}^2}$
4. D.
   $\dfrac{\mathrm{KE}^2}{2\mathrm{B}^2}$

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1. A.
   80 Wb
2. B.
   16 Wb
3. C.
   $8 \times 10^{-2}$ Wb
4. D.
   $8 \times 10^{-3}$ Wb

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1. A.
   Production of ac is economical.
2. B.
   ac can be easily and efficiently converted from one voltage to the other.
3. C.
   ac can be transmitted economically over long distances.
4. D.
   ac is less dangerous.

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1. A.
   $0{\cdot}5 \times 10^{3}\ \mathrm{m^{-1}}$
2. B.
   $6{\cdot}0 \times 10^{2}\ \mathrm{m^{-1}}$
3. C.
   $7{\cdot}5 \times 10^{2}\ \mathrm{m^{-1}}$
4. D.
   $1{\cdot}5 \times 10^{3}\ \mathrm{m^{-1}}$

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1. A.
   $n^2$
2. B.
   n
3. C.
   $\dfrac{1}{n}$
4. D.
   $\dfrac{1}{n^2}$

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1. A.
   Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
2. B.
   Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
3. C.
   Assertion (A) is true, but Reason (R) is false.
4. D.
   Both Assertion (A) and Reason (R) are false.

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1. A.
   Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
2. B.
   Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
3. C.
   Assertion (A) is true, but Reason (R) is false.
4. D.
   Both Assertion (A) and Reason (R) are false.

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1. A.
   Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
2. B.
   Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
3. C.
   Assertion (A) is true, but Reason (R) is false.
4. D.
   Both Assertion (A) and Reason (R) are false.

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1. A.
   Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
2. B.
   Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
3. C.
   Assertion (A) is true, but Reason (R) is false.
4. D.
   Both Assertion (A) and Reason (R) are false.

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1. A.
   Wave nature of light
2. B.
   Particle nature of light
3. C.
   Transverse nature of light
4. D.
   Both wave nature and transverse nature of light

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1. A.
   720 nm
2. B.
   590 nm
3. C.
   480 nm
4. D.
   364 nm

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1. A.
   $1{\cdot}2$ mm
2. B.
   $0{\cdot}2$ mm
3. C.
   $4{\cdot}2$ mm
4. D.
   $6{\cdot}8$ mm

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1. A.
   $8{\cdot}1 \times 10^{-7}$ m
2. B.
   $7{\cdot}2 \times 10^{-7}$ m
3. C.
   $6{\cdot}5 \times 10^{-7}$ m
4. D.
   $6{\cdot}0 \times 10^{-7}$ m

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1. A.
   disappear
2. B.
   become blurred
3. C.
   be widened
4. D.
   be compressed

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1. A.
   $\left(2 \times 10^{2}\ \dfrac{\mathrm{V}}{\mathrm{m}}\right)\hat{k}$
2. B.
   $-\left(2 \times 10^{2}\ \dfrac{\mathrm{V}}{\mathrm{m}}\right)\hat{k}$
3. C.
   $\left(2 \times 10^{4}\ \dfrac{\mathrm{V}}{\mathrm{m}}\right)\hat{k}$
4. D.
   $-\left(2 \times 10^{4}\ \dfrac{\mathrm{V}}{\mathrm{m}}\right)\hat{k}$

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1. A.
   $-(3{\cdot}5 \times 10^{15}\ \mathrm{ms^{-2}})\ \hat{k}$
2. B.
   $(3{\cdot}5 \times 10^{15}\ \mathrm{ms^{-2}})\ \hat{k}$
3. C.
   $(3{\cdot}5 \times 10^{13}\ \mathrm{ms^{-2}})\ \hat{i}$
4. D.
   $-(3{\cdot}5 \times 10^{13}\ \mathrm{ms^{-2}})\ \hat{i}$

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1. A.
   $9{\cdot}0 \times 10^{-9}$ s
2. B.
   $1{\cdot}67 \times 10^{-8}$ s
3. C.
   $1{\cdot}67 \times 10^{-9}$ s
4. D.
   $2{\cdot}17 \times 10^{-9}$ s

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1. A.
   10 mm
2. B.
   $4{\cdot}9$ mm
3. C.
   $5{\cdot}9$ mm
4. D.
   $3{\cdot}0$ mm

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1. A.
   a
2. B.
   b
3. C.
   c
4. D.
   d

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1. A.
   $3{\cdot}87 \times 10^{-43}\ \mathrm{kg\ ms^{-1}}$
2. B.
   $2{\cdot}5 \times 10^{-30}\ \mathrm{kg\ ms^{-1}}$
3. C.
   $2{\cdot}65 \times 10^{-27}\ \mathrm{kg\ ms^{-1}}$
4. D.
   $1{\cdot}33 \times 10^{-27}\ \mathrm{kg\ ms^{-1}}$

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1. A.
   high resistance in reverse bias and a low resistance in forward bias
2. B.
   high resistance in both forward bias and reverse bias
3. C.
   low resistance in both reverse bias and forward bias
4. D.
   high resistance in forward bias and low resistance in reverse bias

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1. A.
   5 V
2. B.
   $3{\cdot}5$ V
3. C.
   $2{\cdot}5$ V
4. D.
   Zero V

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1. A.
   $0{\cdot}5 \times 10^{3}\ \mathrm{m^{-1}}$
2. B.
   $6{\cdot}0 \times 10^{2}\ \mathrm{m^{-1}}$
3. C.
   $7{\cdot}5 \times 10^{2}\ \mathrm{m^{-1}}$
4. D.
   $1{\cdot}5 \times 10^{3}\ \mathrm{m^{-1}}$

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1. A.
2. B.
3. C.
4. D.

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1. A.
   Production of ac is economical.
2. B.
   ac can be easily and efficiently converted from one voltage to the other.
3. C.
   ac can be transmitted economically over long distances.
4. D.
   ac is less dangerous.

Tap an option to check your answer.

1. A.
   $\dfrac{3h}{2\pi}$
2. B.
   $\dfrac{2h}{\pi}$
3. C.
   $\dfrac{h}{\pi}$
4. D.
   $\dfrac{h}{2\pi}$

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1. A.
   $\dfrac{V_0}{2}, \dfrac{V_0}{\sqrt{2}}$
2. B.
   $\dfrac{V_0}{\pi}, \dfrac{V_0}{2}$
3. C.
   $\dfrac{V_0}{\sqrt{2}}, 0$
4. D.
   $V_0, \dfrac{V_0}{\sqrt{2}}$

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1. A.
   $\dfrac{q}{4\pi\varepsilon_0\, l^2}$ pointing along MA
2. B.
   $\dfrac{q}{\pi\varepsilon_0\, l^2}$ pointing along AM
3. C.
   $\dfrac{q}{2\pi\varepsilon_0\, l^2}$ pointing along AM
4. D.
   Zero

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1. A.
   $(\mathrm{M_x} - \mathrm{M_z}) < \mathrm{M_y}$
2. B.
   $(\mathrm{M_x} - \mathrm{M_y}) < \mathrm{M_z}$
3. C.
   $\mathrm{M_x} > (\mathrm{M_y} + \mathrm{M_z})$
4. D.
   $\mathrm{M_x} < (\mathrm{M_y} + \mathrm{M_z})$

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1. A.
   Zero
2. B.
   $-\dfrac{Q}{4\pi\varepsilon_0\, d}$
3. C.
   $\dfrac{Q}{4\pi\varepsilon_0\, d}$
4. D.
   $\dfrac{3Q}{4\pi\varepsilon_0\, d}$