Question: Q. 9. An EM wave, Y1, has a wavelength of 1 cm while another EM wave, Y2, has a frequency of 1015 Hz. Name these two types of waves and write one useful application for each.

R [Foreign 2016]

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Solution:

Ans. Y1 Microwaves

1/2

Microwave oven, Aircraft Navigator or any other

Y2 Ultraviolet waves

1/2

Sterilize surgical instruments, food preservation or any other

[CBSE Marking Scheme 2016]

Short Answer Type Questions-II

(3 marks each)



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