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A wire is stretched by a force such that it experiences a strain of 2 x 10-3. If Young’s modulus of the material is 2 x 1011 Pa,...
If the distance between two consecutive crests is L, then the wavelength is given by______.
An electric dipole of length 10 cm, when placed with its axis making an angle of 30° with a uniform electric field, experiences a torque of 2√...
The time period of a simple pendulum depends on —
A sugar solution in a tube of length 2.0 dm produces optical rotation of 12°. Then, the sugar solution is diluted to one half of its initial concentra...
‘Lubb-dupp’ sound is produced due to the action of
What is the speed of sound in air at room temperature (approx)?
Which of the following is not an insulator?
Sound travels fastest in which medium?
A thin conducting rod of length 3 m is aligned vertically (along the z-axis) and is moving in space with a velocity vector v = (i + 4j) m/s within a un...
