Wavelength of radiation emitted by a body depends on the ________________ of its surface?

Question: Which of the following rays has the least wavelength?
[A].

Ultraviolet rays

[B].

Infrared rays

[C].

Cosmic rays

[D].

X-rays

Answer: Option C

Explanation:

No answer description available for this question.

Question: Increasing the temperature of a material makes it
[A].

harder

[B].

softer

[C].

tougher

[D].

stronger

Answer: Option B

Explanation:

No answer description available for this question.

Question: Age hardening is connected with
[A].

babbit metal

[B].

gun metal

[C].

stainless steel

[D].

duralumin

Answer: Option D

Explanation:

No answer description available for this question.