- AMicro waves
- BRadio waves
- ✓X-rays
- DInfrared rays
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Assertion : Coloured spectrum is seen when we look through a muslin cloth.
Reason : It is due to the diffraction of white light on passing through fine slits.
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(a) If both assertion and reason are true and the reason is the correct explanation of the assertion. |
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(b) If both assertion and reason are true but reason is not the correct explanation of the assertion. |
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(c) If assertion is true but reason is false. |
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(d) If the assertion and reason both are false. |
Albedo is maximum for
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(a) Pluto |
(b) Venus |
(c) Earth |
(d) Mercury |
Barrier potential of a P-N junction diode does not depend on
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(a) Temperature |
(b) Forward bias |
(c) Doping density |
(d) Diode design |
In the lowest energy level of hydrogen atom, the electron has the angular momentum
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(a) |
(b) h/ |
(c) h/2 |
(d) |