A 60 W electric lamp gives off energy in the form of light at the rate of 7.5 J/s.
Asked by | 19th Mar, 2010, 10:41: AM
Expert Answer:
Amount of energy given out in the form of light, 7.5 J/s = 7.5 W.
Amount of energy transformed into light = 7.5x100/60 = 12.5 %
Regards,
Team,
TopperLearning.
Answered by | 19th Mar, 2010, 06:54: PM
Kindly Sign up for a personalised experience
- Ask Study Doubts
- Sample Papers
- Past Year Papers
- Textbook Solutions
Sign Up
Verify mobile number
Enter the OTP sent to your number
Change