(English Medium) ICSE Class 10 - CISCE Question Bank Solutions

What is the range of the wavelength of the following electromagnetic waves?

(A) Radio waves. 

Give the range of wavelength of the electromagnetic waves visible to us.

Name the region beyond  the red end  of the spectrum.

Name the region beyond the violet end of the spectrum called.

What do you understand by the invisible spectrum? 

State the approximate range of wavelength associated with the ultraviolet rays.

State the approximate range of wavelength associated with visible light.

State the approximate range of wavelength associated with infrared rays.

Name the radiations of wavelength just longer than 8 × 10^-7m.

Name the radiations of wavelength just shorter than 4 × 10^-7 m.

Name two electromagnetic waves of frequency smaller than that of violet light. State one use of each.

Give one use of microwaves.

Give one use of ultraviolet radiation.

Give one use of gamma rays.

Name the rays or waves  of highest frequency .

Name the waves used for taking photographs in dark.

Name the waves produced by the changes in the nucleus of an atom.

Name the waves of wavelength nearly 0.1 nm.

Two waves A and B have wavelength 0.01 Å and 9000 Å respectively.

1. Name the two waves.
2. Compare the speeds of these waves when they travel in vacuum.

Name two sources, each of infrared radiations and ultraviolet radiations.