Q6 of 33 Page 460

Write true or false for the following statements:

Solar cells are made of semiconductor materials.

True

Solar cells are made up of Silicon which is a p-type semiconductor. Thus the given statement is true.


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4

Write true or false for the following statements:

Glass cover in a solar heating device allows the short wavelength of ultraviolet radiations to enter the solar cooker.

 5

Write true or false for the following statements:

Spherical reflectors are used to obtain high temperatures in solar heating devices.

 7

Write true or false for the following statements:

A modern selenium solar cell can convert 25% of sunlight into electrical energy.

 8

Write true or false for the following statements:

Solar cells and solar panels cannot be used in remote areas.