Day 135: MHT-CET Physics

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

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

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1. A.
   $60$ mA
2. B.
   $30$ mA
3. C.
   $20$ mA
4. D.
   $10$ mA

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1. A.
   Drum
2. B.
   Saxophone
3. C.
   Daphali
4. D.
   Xylophone

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1. A.
   The distance between consecutive antinodes is equal to the wavelength.
2. B.
   In a pipe open at both ends when an air column is vibrated, only even harmonics are present.
3. C.
   When an air column is vibrated in a pipe closed at one end, all harmonics are present.
4. D.
   In the case of a stretched string, when vibrated frequency of the first overtone is same as the second harmonic.

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