Flat 50% off
BUY NOWEnds in
A particle is projected from a pipe at an angle \(\theta = 45^o\) wtih the vertical at a point P with a speed \(u = 10 ms^{-1}\). A strong horizontal wind gives a constant horizontal acceleration equal to \(5 ms^{-2}\) to the particle such that the particle reaches the ground at point Q which is exactly below P. The height of point P (in m) from the ground is \([g = 10 ms^{-2}]\)
(a) 30
(b) 40
(c) 50
(d) 60
Updated Thu, 20 Sep 2018 04:33 pm
Black body radiation is emitted by two circular stars A and B. Radius of A is 400 times radius of B and energy emitted by star A is \(10^4\) times, energy emitted by star B. Find the ratio of their wavelengths \((\frac {\lambda _A}{\lambda_B} )\) When radiation curves are at peak.
Updated Mon, 17 Sep 2018 04:32 pm
