MHT-CET 2023 (11 May Shift 1), Paper II, Physics & Chemistry question paper

1. A.
   may increase or decrease.
2. B.
   decreases.
3. C.
   is conserved.
4. D.
   increases.

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1. A.
   becomes 4 times.
2. B.
   becomes 2 times.
3. C.
   gets halved.
4. D.
   remains unchanged.

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1. A.
   $2 \times 10^{-16}$ kg
2. B.
   $2.2 \times 10^{-16}$ kg
3. C.
   $20 \times 10^{-16}$ kg
4. D.
   $4 \times 10^{-16}$ kg

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1. A.
   $2:1$
2. B.
   $\sqrt{2}:1$
3. C.
   $1:\sqrt{2}$
4. D.
   $1:2$

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1. A.
   $\frac{R}{9}$
2. B.
   $\frac{R}{3}$
3. C.
   3R
4. D.
   9R

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1. A.
   $\sqrt{n} : 1$
2. B.
   $\sqrt[3]{n} : 1$
3. C.
   $n : 1$
4. D.
   $n^2 : 1$

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1. A.
   $\tan^{-1}(0)$
2. B.
   $\tan^{-1}\frac{1}{3}$
3. C.
   $\tan^{-1}(1)$
4. D.
   $\tan^{-1}(3)$

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1. A.
   $\frac{MgA^2}{L}$
2. B.
   $\frac{2MgA^2}{L}$
3. C.
   $\frac{MgA^2}{L}$
4. D.
   $\frac{MgA^2}{2L}$

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1. A.
   1.1 mm
2. B.
   2.2 mm
3. C.
   4.4 mm
4. D.
   5.5 mm

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1. A.
   5 cm
2. B.
   8 cm
3. C.
   10 cm
4. D.
   12 cm

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1. A.
   NAND gate
2. B.
   OR gate
3. C.
   NOR gate
4. D.
   X-OR gate

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1. A.
   1.4 mV
2. B.
   0.72 mV
3. C.
   0.54 mV
4. D.
   0.144 mV

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

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1. A.
   $\frac{5g}{14}$
2. B.
   $\frac{5g}{4}$
3. C.
   $\frac{2g}{3}$
4. D.
   $\frac{g}{3}$

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1. A.
   $(\mu-1)\mu x$
2. B.
   $\frac{\mu x}{\mu-1}$
3. C.
   $\frac{(\mu-1)x}{\mu}$
4. D.
   $\mu(\mu-1)x$

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

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1. A.
   $0.25$ Am$^2$
2. B.
   $0.50$ Am$^2$
3. C.
   $1$ Am$^2$
4. D.
   $1.2$ Am$^2$

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1. A.
   $\cos^2\frac{\phi}{4}$
2. B.
   $\cos^2\frac{\phi}{3}$
3. C.
   $\cos^2\frac{\phi}{2}$
4. D.
   $\cos^2\phi$

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1. A.
   $\frac{1}{8}$
2. B.
   $\frac{1}{4}$
3. C.
   $\frac{1}{64}$
4. D.
   $\frac{1}{12}$

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1. A.
   $n_e \gg n_h$
2. B.
   $n_e \ll n_h$
3. C.
   $n_e \leq n_h$
4. D.
   $n_e = n_h$

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1. A.
   250 Hz
2. B.
   300 Hz
3. C.
   340 Hz
4. D.
   400 Hz

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1. A.
   $\frac{1 + 2\pi fCR}{4\pi^2 f^2 C}$
2. B.
   $\frac{1 - 2\pi fCR}{4\pi^2 f^2 C}$
3. C.
   $\frac{4\pi^2 f^2 C}{1 + 2\pi fCR}$
4. D.
   $\frac{4\pi^2 f^2 C}{1 - 2\pi fCR}$

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1. A.
   5 $\mu$F
2. B.
   6 $\mu$F
3. C.
   7 $\mu$F
4. D.
   8 $\mu$F

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

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1. A.
   $\frac{Rn}{n-1}$
2. B.
   $\frac{R(n-2)}{n-1}$
3. C.
   $\frac{R(2n-1)}{n}$
4. D.
   $\frac{R(n-1)}{2n-1}$

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1. A.
   increases
2. B.
   decreases
3. C.
   remains constant
4. D.
   suddenly becomes zero

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1. A.
   75 cm
2. B.
   50 cm
3. C.
   30 cm
4. D.
   25 cm

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1. A.
   m
2. B.
   $\frac{m}{3}$
3. C.
   $\frac{m}{6}$
4. D.
   $\frac{m}{9}$

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1. A.
   $\frac{Q}{3}$
2. B.
   $-\frac{Q}{3}$
3. C.
   $\frac{4}{3}Q$
4. D.
   $-\frac{4}{3}Q$

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1. A.
   $9 \times 10^5$ A/m
2. B.
   $7.5 \times 10^5$ A/m
3. C.
   $4.5 \times 10^5$ A/m
4. D.
   $3.0 \times 10^5$ A/m

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1. A.
   should be decreased.
2. B.
   should be increased.
3. C.
   should be same.
4. D.
   should be three times the original.

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1. A.
   6 m
2. B.
   12 m
3. C.
   $12\sqrt{3}$ m
4. D.
   $6\sqrt{3}$ m

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1. A.
   light travels from denser to rarer medium and $i < i_c$.
2. B.
   light travels from rarer to denser medium and $i < i_c$.
3. C.
   light travels from denser to rarer medium and $i > i_e$.
4. D.
   light travels from rarer to denser medium and $i > i_c$.

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1. A.
   increases.
2. B.
   decreases.
3. C.
   remains constant.
4. D.
   first decreases, becomes minimum and then increases.

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1. A.
   $\frac{C}{2}\cdot\frac{K+1}{K-1}$
2. B.
   $\frac{2C(K-1)}{K+1}$
3. C.
   $\frac{C}{2}\cdot\frac{K-1}{K+1}$
4. D.
   $\left(\frac{C}{2}\cdot\frac{K-1}{K+1}\right)^2$

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1. A.
   2
2. B.
   1.5
3. C.
   1
4. D.
   0.5

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1. A.
   Same as velocity of sound towards the source.
2. B.
   Same as velocity of sound away from the source.
3. C.
   Half the velocity of sound towards the source.
4. D.
   Twice the velocity of sound towards the source.

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1. A.
   $\frac{2\mu_0 I}{r}$
2. B.
   zero
3. C.
   $\frac{\mu_0 I}{4r}$
4. D.
   $\frac{\mu_0 I}{2r}$

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1. A.
   T
2. B.
   $T^{-2}$
3. C.
   $T^{+2}$
4. D.
   $T^{-1}$

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1. A.
   $\frac{mV^2}{3R}$
2. B.
   $\frac{mV^2}{5R}$
3. C.
   $\frac{mV^2}{7R}$
4. D.
   $\frac{5mV^2}{3R}$

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1. A.
   1.2 A
2. B.
   2.4 A
3. C.
   4 A
4. D.
   4.8 A

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1. A.
   1.68 mm
2. B.
   2.06 mm
3. C.
   3.64 mm
4. D.
   4.32 mm

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1. A.
   $\lambda$ is increased to $\sqrt{2}$ times.
2. B.
   $\lambda$ is increased to $\frac{1}{\sqrt{2}}$ times.
3. C.
   $\lambda$ is decreased to $\frac{1}{\sqrt{2}}$ times.
4. D.
   $\lambda$ is decreased to $\sqrt{2}$ times.

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1. A.
   $\frac{7}{2}$
2. B.
   $\frac{7}{3}$
3. C.
   5
4. D.
   6

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1. A.
   as a rectifier.
2. B.
   for converting light energy to electrical energy.
3. C.
   for getting light radiation.
4. D.
   for increasing the amplitude of an a.c. signal.

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1. A.
   $\frac{V^2 - u^2}{a_1 - a_2}$
2. B.
   $\frac{v^2 + u^2}{a_1 + a_2}$
3. C.
   $\frac{u^2 + V^2}{a_1 - a_2}$
4. D.
   $\frac{u^2 - V^2}{a_1 + a_2}$

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1. A.
   $\frac{1}{2}$
2. B.
   $\frac{1}{4}$
3. C.
   $\frac{1}{3}$
4. D.
   $\frac{2}{3}$

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1. A.
   $3 \times 10^{-3}$ s
2. B.
   $3 \times 10^{-2}$ s
3. C.
   $6 \times 10^{-3}$ s
4. D.
   $3 \times 10^{-2}$ s

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1. A.
   $W_2 = 0$
2. B.
   $W_2 = 4W_1$
3. C.
   $W_2 < 4W_1$
4. D.
   $W_2 = W_1$

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1. A.
   1.28
2. B.
   1.29
3. C.
   1.30
4. D.
   1.32

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1. A.
   $(CH_3)_3CHCH_2Br$
2. B.
   $(CH_3)_3CBr$
3. C.
   $(CH_3)_2CH-Br$
4. D.
   $CH_3-(CH_2)_2-CH_2Br$

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1. A.
   surface tension and viscosity
2. B.
   mass and temperature
3. C.
   internal energy and boiling point
4. D.
   heat capacity and specific heat

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1. A.
   $mvr = \frac{2\pi h}{n}$
2. B.
   $mvr = \frac{nh}{2\pi}$
3. C.
   $mvh = \frac{n \cdot r}{2\pi}$
4. D.
   $mv = \frac{h \cdot r}{2\pi n}$

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1. A.
   Cu
2. B.
   Sc
3. C.
   Mn
4. D.
   Zn

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1. A.
   $CH_3 - Cl$
2. B.
   $CH_3 - F$
3. C.
   $CH_3 - Br$
4. D.
   $CH_3 - I$

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1. A.
   1.97
2. B.
   1.79
3. C.
   0.242
4. D.
   0.557

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1. A.
   $C_6H_5MgBr$
2. B.
   $CH_3MgCl$ (in dry ether)
3. C.
   $(CH_3)_2Cd$
4. D.
   $AlH(i-Bu)_2$

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1. A.
   $C_2H_5I(g) \longrightarrow C_2H_4(g) + HI(g)$
2. B.
   $2NO_2Cl(g) \longrightarrow 2NO_2(g) + Cl_2(g)$
3. C.
   $2NO_2(g) + F_2(g) \longrightarrow 2NO_2F(g)$
4. D.
   $2NO(g) + Cl_2(g) \longrightarrow 2NOCl(g)$

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1. A.
   Furan
2. B.
   Thiophene
3. C.
   THF
4. D.
   Pyrrole

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1. A.
   $7.5$ dm$^3$ bar
2. B.
   $-7.5$ dm$^3$ bar
3. C.
   $22.5$ dm$^3$ bar
4. D.
   $-22.5$ dm$^3$ bar

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1. A.
   $\bar{v} = R_H \cdot \frac{3}{4}$
2. B.
   $\bar{v} = R_H \cdot \frac{5}{36}$
3. C.
   $\bar{v} = R_H \cdot \frac{4}{3}$
4. D.
   $\bar{v} = R_H \cdot \frac{36}{5}$

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1. A.
   0.215
2. B.
   0.072
3. C.
   0.610
4. D.
   0.512

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1. A.
   Acetophenone
2. B.
   Benzoic acid
3. C.
   Benzophenone
4. D.
   Benzaldehyde

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1. A.
   0.0727 minute
2. B.
   0.1454 minute
3. C.
   0.2181 minute
4. D.
   0.4362 minute

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1. A.
   Glucose cyanohydrin
2. B.
   Glucose oxime
3. C.
   n-Hexane
4. D.
   Saccharic acid

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1. A.
   catalyst
2. B.
   inhibitor
3. C.
   promotor
4. D.
   adsorbate

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1. A.
   10600 J
2. B.
   9400 J
3. C.
   $-10600$ J
4. D.
   $-9400$ J

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1. A.
   $H_2SO_4$
2. B.
   $NO_2$
3. C.
   $SCl_2$
4. D.
   $SF_6$

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1. A.
   $sp^3d^2$
2. B.
   $dsp^2$
3. C.
   $sp^3$
4. D.
   $d^2sp^3$

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1. A.
   Ideal solution obey Raoult's law over entire range of temperature and concentration.
2. B.
   For ideal solution $\Delta_{mix}V = 0$.
3. C.
   Non ideal solution do not obey Raoult's law over the entire range of concentration.
4. D.
   Vapour pressure of non-ideal solution always lies between vapour pressure of pure components.

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1. A.
   It is useful for preparation of $R-NH_2$.
2. B.
   In this alkyl cyanides are reduced.
3. C.
   In this sodium and ethanol is used for reduction.
4. D.
   In this method one carbon atom is lost in the form of $CO_2$.

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1. A.
   $0.008$ mol dm$^{-3}$
2. B.
   $0.08$ mol dm$^{-3}$
3. C.
   $0.016$ mol dm$^{-3}$
4. D.
   $0.032$ mol dm$^{-3}$

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1. A.
   Arylamine
2. B.
   Tertiary alkanamine
3. C.
   Secondary alkanamine
4. D.
   Primary alkanamine

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1. A.
   $-2$
2. B.
   $-3$
3. C.
   $+4$
4. D.
   $+6$

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1. A.
   $Cl_2(g)$
2. B.
   Na(l)
3. C.
   Na-Hg(l)
4. D.
   $H_2(g)$

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1. A.
   Fe
2. B.
   Cr
3. C.
   Mn
4. D.
   Ni

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1. A.
   Chloromethane
2. B.
   Bromomethane
3. C.
   Dibromomethane
4. D.
   Tribromomethane

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1. A.
   $3.3 \times 10^{-6}$ M
2. B.
   $3.3 \times 10^{-10}$ M
3. C.
   $1.32 \times 10^{-6}$ M
4. D.
   $1.32 \times 10^{-10}$ M

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1. A.
   $CrO_2Cl_2$ in $CS_2$
2. B.
   $CrO_3$ in acetic anhydride
3. C.
   $SnCl_2, HCl$
4. D.
   $Co, HCl$, anhydrous $AlCl_3$

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1. A.
   Silicon doped with phosphorous
2. B.
   Silicon doped with boron
3. C.
   Germanium doped with boron
4. D.
   Germanium doped with aluminium

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1. A.
   Nylon 6
2. B.
   Polyacrylonitrile
3. C.
   Teflon
4. D.
   PHBV

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1. A.
   Beryllium
2. B.
   Liquid sodium
3. C.
   Caesium
4. D.
   Calcium

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1. A.
   $1.70$ cm$^{-1}$
2. B.
   $0.017$ cm$^{-1}$
3. C.
   $0.058$ cm$^{-1}$
4. D.
   $0.012$ cm$^{-1}$

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1. A.
   $sp^3d^2$
2. B.
   $sp^3$
3. C.
   $sp^2$
4. D.
   $sp$

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1. A.
   Monochloromethane
2. B.
   Dichloromethane
3. C.
   Trichloromethane
4. D.
   Tetrachloromethane

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1. A.
   $2 \times 10^{-2}$
2. B.
   $4 \times 10^{-4}$
3. C.
   $5 \times 10^{-5}$
4. D.
   $2.5 \times 10^{-4}$

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

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1. A.
   $4.07 \times 10^{-8}$ cm
2. B.
   $3.22 \times 10^{-8}$ cm
3. C.
   $2.63 \times 10^{-8}$ cm
4. D.
   $2.23 \times 10^{-8}$ cm

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1. A.
   Nylon 6
2. B.
   Dacron
3. C.
   Bakelite
4. D.
   Polyacrylamide

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1. A.
   Legumelin
2. B.
   Myosin
3. C.
   Insulin
4. D.
   Serum albumin

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1. A.
   $NH_3 + C_6H_6$
2. B.
   $NaCl + H_2O$
3. C.
   $CH_4 + C_2H_6$
4. D.
   $HF + H_2O$

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1. A.
   $125$ ohm$^{-1}$ cm$^{2}$ mol$^{-1}$
2. B.
   $0.05$ ohm$^{-1}$ cm$^{2}$ mol$^{-1}$
3. C.
   $725$ ohm$^{-1}$ cm$^{2}$ mol$^{-1}$
4. D.
   $800$ ohm$^{-1}$ cm$^{2}$ mol$^{-1}$