| ASSERTION: In a chain of bulbs, 50 bulbs are joined in series. One bulb is removed now. If the remaining 49 bulbs are again connected in series across the same supply then light gets decreased in the room. |
| REASON: The resistance of 49 bulbs will be more than 50 bulbs. |
A) If both assertion and reason are true and reason is the correct explanation of assertion.
B) If both assertion and reason are true and reason is not the correct explanation of assertion.
C) If assertion is true but reason is false.
D) If both assertion and reason are false.
E) If assertion is false but reason is true.
Correct Answer: D
Solution :
Since the bulbs are joined in series so when one bulb is removed from chain then the resistance of the chain is decreased hence current flowing through each bulb is increased. As heat produced \[\propto \,{{i}^{2}}\], hence light gets increased in the room.
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