A solid sphere, a hollow sphere and a ring are released from top of an inclined plane (frictionless) so that they slide down the plane. Then maximum acceleration down the plane is for (no rolling) […]
Which of the two have same dimensions?
Options
(a) Force and strain (b) Force and stress (c) Angular velocity and frequency (d) Energy and strain
Correct Answer:
Angular velocity and frequency
Explanation:
No […]
The dimensions of pressure are equal to those of
Options
(a) Force per unit volume (b) Energy per unit volume (c) Force (d) Energy
Correct Answer:
Energy per unit volume
Explanation:
No explanation […]
Identify the pair whose dimensions are equal
Options
(a) torque and work (b) stress and energy (c) force and stress (d) force and work
Correct Answer:
torque and work
Explanation:
No explanation available. […]
The moment of inertia of a semicircular ring about the centre is
Options
(a) MR² (b) MR² / 2 (c) MR² / 4 (d) None of these
Correct Answer:
MR²
Explanation:
No explanation […]
Sodium and copper have work function 2.3 eV and 4.5 eV respectively. The ratio of their threshold wavelengths is nearest to
Options
(a) 1 : 2 (b) 4 : 1 (c) 2 : […]
When volume of a system is increased two times and temperature is decreased to half of its initial temperature, then pressure becomes
Options
(a) 2 times (b) 4 times (c) 1 / 4 […]
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