Physics questions
20027 published questions with worked solutions.
- A cylindrical rod of length 1 m and radius 4 cm is mounted vertically. It is subjected to a shear force of 10^5 N at the top....
- A block of mass 25 kg is pulled along a horizontal surface by a force at an angle 45° with the horizontal. The friction...
- An inductor of self inductance 1 H is connected in series with a resistor of 100 ohm and an ac supply of 100 volt, 50 Hz. Maximum...
- A particle of charge 1.6 and mass 16 is present in a strong magnetic field of 6.28 T. The particle is then fired perpendicular to...
- A solid sphere with uniform density and radius R is rotating initially with constant angular velocity ( _1) about its diameter....
- In a Young's double slit experiment, two slits are located 1.5 mm apart. The distance of screen from slits is 2 m and the...
- The unit of 2I _0 c is : (I = intensity of an electromagnetic wave, c : speed of light)
- Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) :...
- Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : The...
- The dimension of _0 _0 is equal to that of : ( _0 = Vacuum permeability and _0 = Vacuum permittivity)
- A capillary tube of radius 0.1 mm is partly dipped in water (surface tension 70 dyn/cm and glass water contact angle ≈ 0°) with...
- Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) :...
- Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : The...
- A photoemissive substance is illuminated with a radiation of wavelength _i so that it releases electrons with de-Broglie...
- An object with mass 500 g moves along x-axis with speed v = 4 x m/s. The force acting on the object is :
- Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : The...
- Which one of the following forces cannot be expressed in terms of potential energy ?
- A mirror is used to produce an image with magnification of 1 4 . If the distance between object and its image is 40 cm, then the...
- The equation of a wave travelling on a string is y = sin [20πx + 10πt], where x and t are distance and time in SI units. The...
- The electric field in a region is given by E = (2 i +4 j +6 k ) 10^3 N/C. The flux of the field through a rectangular surface...