GATE Mechanical Engineering
2,412 questions · 40 years · 27 subjects
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The peak wavelength of radiation emitted by a black body at a temperature of 2000 K is 1.45 µm. If the peak wavelength of emitted radiation changes to 2.90 µm, then the temperature...
A particle of unit mass is moving on a plane. Its trajectory, in polar coordinates, is given by r(t) = t^2, θ(t) = t, where t is time. The kinetic energy of the particle at time t...
The following figure shows the velocity-time plot for a particle traveling along a straight line. The distance covered by the particle from $t = 0$ to $t = 5$ s is ________ m.
The emissive power of a blackbody is P. If its absolute temperature is doubled, the emissive power becomes
A point mass is shot vertically up from ground level with a velocity of 4 m/s at time, t = 0. It loses 20% of its impact velocity after each collision with the ground. Assuming tha...
The radius of gyration of a compound pendulum about the point of suspension is 100 mm. The distance between the point of suspension and the centre of mass is 250 mm. Considering th...