Physics questions
20027 published questions with worked solutions.
- The Boolean expression Y = A B C + A C can be realised with which of the following gate configurations. A. One 3-input AND gate,...Not in JEE Advanced syllabus
- Consider the sound wave travelling in ideal gases of He, CH4 and CO2. All the gases have the same ratio P , where P is the...
- Assertion A : In photoelectric effect, on increasing the intensity of incident light the stopping potential increases. Reason R:...
- In a Young's double slit experiment, the slits are separated by 0.2 mm. If the slits separation is increased to 0.4 mm, the...
- Which of the following are correct expression for torque acting on a body? A. = r L B. = d dt ( r p ) C. = r d p dt D. = I E. = r...
- If L and P represent the angular momentum and linear momentum respectively of a particle of mass 'm' having position vector as r...
- Two small spherical balls of mass 10 g each with charges –2 μC and 2 μC, are attached to two ends of very light rigid rod of...
- Two simple pendulums having lengths ℓ1 and ℓ2 with negligible string mass undergo angular displacements θ1 and θ2, from their...
- Current passing through a wire as function of time is given as I(t) = 0.02t + 0.01 A. The charge that will flow through the wire...
- Assertion A : The kinetic energy needed to project a body of mass m from earth surface to infinity is 1 2 mgR, where R is the...
- A body of mass m is suspended by two strings making angles θ1 and θ2 with the horizontal ceiling with tensions T1 and T2...
- An alternating current is represented by the equation, i = 100 2 (100 t) ampere. The RMS value of current and the frequency of...
- Two liquids A and B have θA and θB as contact angles in a capillary tube. If K = _A _B , K then identify the correct statement:
- In an experiment with a closed organ pipe, it is filled with water by ( 1 5 )th of its volume. The frequency of the fundamental...
- Distance between object and its image (magnified by - 1 3 ) is 30 cm. The focal length of the mirror used is ( x 4 ) cm, where...
- A circular ring and a solid sphere having same radius roll down on an inclined plane from rest without slipping. The ratio of...
- A rod of linear mass density ' ' and length 'L' is bent to form a ring of radius 'R'. Moment of inertia of ring about any of its...
- In a young's double slit experiment, the source is white light. One of the slits is covered by red filter and another by a green...
- For a nucleus of mass number A and radius R, the mass density of nucleus can be represented as
- A convex lens of focal length 30 cm is placed in contact with a concave lens of focal length 20 cm. An object is placed at 20 cm...