Physics questions
20027 published questions with worked solutions.
- A balloon and its content having mass M is moving up with an acceleration 'a'. The mass that must be released from the content so...
- An electric dipole of dipole moment 6 10^ -6 Cm is placed in uniform electric field of magnitude 10^6 V/m. Initially, the dipole...
- The volume contraction of a solid copper cube of edge length 10 cm, when subjected to a hydraulic pressure of 7 10^6 Pa, would be...
- A thin transparent film with refractive index 1.4, is held on circular ring of radius 1.8 cm. The fluid in the film evaporates...
- Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Choke...
- Two projectiles are fired with same initial speed from same point on ground at angles of (45° – α) and (45° + α), respectively,...
- An electric dipole of mass m, charge q, and length l is placed in a uniform electric field E = E_0 i . When the dipole is rotated...
- The pair of physical quantities not having same dimensions is :
- Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Time...
- The expression given below shows the variation of velocity (ν) with time (t), = At^2 + Bt C+t . The dimension of ABC is :
- Consider I_1 and I_2 are the currents flowing simultaneously in two nearby coils 1 & 2, respectively. If L_1 = self inductance of...
- Consider a long straight wire of a circular cross-section (radius a) carrying a steady current I. The current is uniformly...
- Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) :...
- A coil of area A and N turns is rotating with angular velocity ω in a uniform magnetic field B about an axis perpendicular to B ....
- The workdone in an adiabatic change in an ideal gas depends upon only :
- Given below are two statements : one is labelled as Assertion (A) and other is labelled as Reason (R). Assertion (A) :...
- The coordinates of a particle with respect to origin in a given reference frame is (1, 1, 1) meters. If a force of F = i - j + k...
- The maximum speed of a boat in still water is 27 km/h. Now this boat is moving downstream in a river flowing at 9 km/h. A man in...
- In an experiment with photoelectric effect, the stopping potential.
- A point charge causes an electric flux of –2 × 10^4 Nm^2C^ -1 to pass through a spherical Gaussian surface of 8.0 cm radius,...