MCQ
Choose the correct option about light.
- ALight requires a material medium to travel from one place to another.
- BLight does not require a material medium to propagate.
- CLight has mass but it is negligible.
- DLight waves are longitudinal wave.
Explanation:
Light does not need medium to travel. Its an electromagnetic wave. All electromagnetic waves travel independent of medium.
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Weber/m2 is equal to
|
(a) Volt |
(b) Henry |
(c) Tesla |
(d) All of these |
Five resistors of given values are connected together as shown in the figure. The current in the arm BD will be
|
(a) Half the current in the arm ABC |
(b) Zero |
|
(c) Twice the current in the arm ABC |
(d) Four times the current in the arm ABC |

A coil having 500 square loops each of side 10 cm is placed normal to a magnetic flux which increases at the rate of 1.0 tesla/second. The induced e.m.f. in volts is
|
(a) 0.1 |
(b) 0.5 |
(c) 1 |
(d) 5 |