After 300 days, the activity of a radioactive sample is 5000 dps
After 300 days, the activity of a radioactive sample is 5000 dps (disintegration per second). The activity becomes 2500 dps…
8 years ago
Questions
A glass flask weighing 390 g having internal volume 500 cc just floats
A glass flask weighing 390 g having internal volume 500 cc just floats when half of it is filled with…
8 years ago
The value of Poisson’s ratio lies between
The value of Poisson's ratio lies between Options (a) 0 to 0.5 (b) 0.5 to 1 (c) (-1 to 1)…
8 years ago
A particle doing SHM has amplitude=4 cm and time period = 12 sec. The ratio between times
A particle doing SHM has amplitude=4 cm and time period = 12 sec. The ratio between times taken by it…
8 years ago
Two particles P and Q start from origin and execute simple harmonic motion along X-axis
Two particles P and Q start from origin and execute simple harmonic motion along X-axis with same amplitude but with…
8 years ago
A solid sphere, a hollow sphere and a ring are released from top of an inclined
A solid sphere, a hollow sphere and a ring are released from top of an inclined plane (frictionless) so that…
8 years ago
Two discs of moment of inertia I₁ and I₂ and angular speeds ?￢ﾂﾁ and ?￢ﾂﾂ are rotating
Two discs of moment of inertia I₁ and I₂ and angular speeds ?￢ﾂﾁ and ?￢ﾂﾂ are rotating along collinear axes…
8 years ago
A body starts from rest with an acceleration of 2 m/s². After 5 second,
A body starts from rest with an acceleration of 2 m/s². After 5 second, the direction of acceleration reverses again…
8 years ago
Three particles A,B and C are thrown from the top of a tower with the same speed.
Three particles A,B and C are thrown from the top of a tower with the same speed. A is thrown…
8 years ago
A simple pendulum oscillates in a vertical plane. When it passes through the mean
A simple pendulum oscillates in a vertical plane. When it passes through the mean position, the tension in the string…
8 years ago