Question

The frequency of e. m waves which is best suited .to observed of radius 3 × 10^–4 his of the order of

विकल्प

• 10¹⁵

• 10¹⁴

• 10¹³

• 10¹²

Answer 1

10¹⁴ 

Explanation:

If `lambda` is radius of the particts then

`lambda = 3 xx 10^-14 xx 10^-2` m.

v = `C/lambda - (3 xx 10^8)/(3 xx 10^-6) = 10^14`