Q3 of 33 Page 460

Write true or false for the following statements:

Black surfaces are poor absorbers of heat.

False

black surfaces are actually the best absorbers of heat. This is the reason, why it is suggested to avoid wearing black colored clothes on summer days.


More from this chapter

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1

Write true or false for the following statements:

Solar energy has the greatest potential of all the renewable sources of energies.

 2

Write true or false for the following statements:

Reflectors are used in solar heating devices to concentrate the sun heat.

 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.