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The dimension of gravitional constant "G" is -------- : M 1 L3T-1, M-1 L3T-2, M2 L1T-3, M-2 L-1T-3
The S.I unit of time is --------- : 60 min, Cesium Sec, Krypton-86, 60 Sec
A 1 kg block slides down a smooth inclined plane whose height is 5 m . The velocity of the body at the bottom is ------- : ?9.8ms-2, 5ms-1, 9.8 ms-2, 7?2ms-1
What is the angle between the two vectors? A =5 I + j and B = 2i + 4 j ? 66 °, 52 °, 25 °, 33 °
A ball is thrown above the horizon making an angle of 30 ° the height attained by the ball is 11.5 m.the launing velocity of the ball is ------ : 20 ms-1, 60 ms-1, 30 ms-1, 45 ms-1
A brick of mass 20 kg is dropped from a rest position 5.0 m above the ground its velocity at a height of 3.0 above the ground will be : 3.6 ms-1, 8.6 ms-1, 6.3 ms-1, 7.8 ms-1
The expression for spinning frequency to create artificial gravity in sateellite is ------ : f = 1/2 ? ? g/R, f = 2 ? ? R/g, f = 1/2 ? ?R/g, f = 2 ? ?g/R
A gramophone record turntable accelerates from rest to an angular velocity of 45.0 rev min-1 in 1.60s.The average angular acceleration is -------- : 29.5 rad S-2, 2.95 rad S-2, 2.95 rev S-2, None Of These
The expression for terminal velocity is ------ : Vt = 2r2P/9ng, Vt = 2gr2P/9ng, Vt = 2gr2P/9n, Vt = 2gnr2P/9p
The instantaneous P.E of spring mass system is given by : P.E max = 1/2 K x 0^2, P.E = 1/2 K x 0^2, P.E = 1/2 K x 0^2, P.E = 1/2 K x 0^2
A simple pendulum is 50.0 cm long its frequency of vibration at a place where g = 9.8ms-2 is ---------: 0.70 Hz, 7 Hz, 6.2 Hz, 10 Hz
The temperature at which the velocity of sound in air is two times its velocity at 10 ° C is : 1321 K, 1213 K, 1132 K, 1231 K
For destuctive interference path difference between two sound waves is ------ : S = n? + ? , S = (2n +1) ? /2, S = (2 + 1/?) n, S = n ?
The frequency for nth mode or vibratory for stationary longitudinal waves in a pip open at both ends is : Fn = nv/4l, Fn = 4l/nv, Fn = 2l/nv, F n = nv/2l
An astronomical telescope having magnifying power of 5 consist of two thin lenses cm apart . The focal length of the lenses is ---- : 4 cm, 20 cm, 16 cm, None Of These
An ideal reversible heat engine has ------ : 100 % efficiency, Highest efficiency, An efficiency which depend on the nature substance , None Of