Question

Arun buys four bulbs of 15W, 40W, 60W and 100W respectively, Which one should be use in his room as a night bulb. Choose correct answer from the given options.
a) 15 W
b) 40W
c) 60W
d) 100W

Answer 1

15W bulb should be used.

Answer 2

The correct answer is (a) 15 W.

• Arun should use a 15 W bulb for his room as a night bulb.
• The power of a 15 W bulb has low voltage and is ideal to use as a night lamp while the others are of high voltage and therefore not ideal for night time use.
• The 15 W bulbs are dimmable to provide just the right brightness and are the best to use as night bulbs.
• So, a 15 W bulb should be use in his room as a night bulb.