The film 'Shatranj Ke Khiladi' is based on a short story by
The frequencies of radio waves in the AM broadcast band range from 0.55xx10^(6) Hz to 1.6 xx 10^(6) Hz. What are the longest and the shorted wavelengths in this band
A : Long distance radio broadcasts use short-wave bands. R : Ionosphere reflectes waves in these bands.
What do you understand by (a) medium wave band (b) short wave band?
Assertion : Short wave bands are used for transmission of radio waves to a large distance. Reason : Short waves are reflected by ionosphere
A particle is released from height S from the surface of the earth. At a certain height its KE is three times its PE. The height from the surface of earth and the speed of the particle at that instant are resp.