- A$C=qV$
- B$C=\frac{V}{q}$
- C$C=\frac{1}{2}qV$
- ✓$C=\frac{q}{V}$
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An electric kettle has two heating coils. When one coil is used, water in the kettle boils in 5 minutes, while when second coil is used, same water boils in 10 minutes. If the two coils, connected in parallel are used simultaneously, the same water will boil in time
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(a) 3 min 20 sec |
(b) 5 min |
(c) 7 min 30 sec |
(d) 2 min 30 sec |
At which place, earth's magnetism become horizontal
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(a) Magnetic pole |
(b) Geographical pole |
(c) Magnetic meridian |
(d) Magnetic equator |
The fringe width in Young’s double slit experiment increases when
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(a) Wavelength increases |
(b) Distance between the slits increases |
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(c) Distance between the source and screen decreases |
(d) The width of the slits increases |
The mass and energy equivalent to 1 a.m.u. respectively
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(a) 1.67 |
(b) 1.67 |
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(c) 1.67 |
(d) 1.67 |
Assertion : Charge is quantized
Reason : Charge, which is less than 1 C is not possible
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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. |