Question

Which of the following is/are disadvantage(s) of photovoltaic cell?

• A. Unable to work on cloudy days and in nights
• B. Emits harmful gases
• C. Cells degrade with time
• D. Low efficiency

Answer 1

Answer: (A), (C), (D)

The correct options are
A Unable to work on cloudy days and in nights
C Cells degrade with time
D Low efficiency

Photovoltaic cell is ecofriendly because there is no emission of harmful gases. Only some part of Sun's energy is converted to useful energy and hence it is less efficient. These cells cannot be used on cloudy days and in nights. Material in the cells degrade with time and hence their life span is very less.