Question: Q. 10. Name the physical quantity which remains same for microwaves of wavelength 1 mm and UV radiations of 1600\AA in vacuum.

R [Delhi I, II, III 2012]

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Solution:

Ans. Speed (or Velocity).

[CBSE Marking Scheme 2012] 1

Detailed Answer :

It is noted that as both microwaves and UV radiations are electromagnetic radiations, so their speed or velocity, 3×108 m/s will remain same in vacuum.

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