Physics questions
20027 published questions with worked solutions.
- Which statements are correct about degrees of freedom? (A) A molecule with n degrees of freedom has n^ 2 different ways of...
- A charge of 4 C is to be divided into two. The distance between the two divided charges is constant. The magnitude of the divided...
- (A) The drift velocity of electrons decreases with the increase in the temperature of conductor. (B) The drift velocity is...
- A compass needle of oscillation magnetometer oscillates 20 times per minute at a place P of dip 30°. The number of oscillations...Not in JEE Advanced syllabus
- A cyclotron is used to accelerate protons. If the operating magnetic field is 1.0 T and the radius of the cyclotron 'dees' is 60...
- A series LCR circuit has L = 0.01 H, R = 10 and C = 1 F and it is connected to ac voltage of amplitude (V_m) 50 V. At frequency...
- Identify the correct statements from the following descriptions of various properties of electromagnetic waves. (A) In a plane...
- Two coherent sources of light interfere. The intensity ratio of two sources is 1 : 4. For this interference pattern if the value...
- With reference to the observations in photo-electric effect, identify the correct statements from below: (A) The square of...
- The activity of a radioactive material is 6.4 10^ -4 curie. Its half life is 5 days. The activity will become 5 10^ -6 curie after
- A conducting circular loop is placed in X-Y plane in presence of magnetic field B = (3t^ 3 j + 3t^ 2 k ) in SI unit. If the...
- A parallel plate capacitor with width 4 cm, length 8 cm and separation between the plates of 4 mm is connected to a battery of 20...
- A wire of length 30 cm, stretched between rigid supports, has it's n^ th and (n + 1)^ th harmonics at 400 Hz and 450 Hz,...
- A spherical soap bubble of radius 3 cm is formed inside another spherical soap bubble of radius 6 cm. If the internal pressure of...
- A torque meter is calibrated to reference standards of mass, length and time each with 5% accuracy. After calibration, the...
- Sand is being dropped from a stationary dropper at a rate of 0.5 kgs^ -1 on a conveyour belt moving with a velocity of 5 ms^ -1 ....
- A bag is gently dropped on a conveyor belt moving at a speed of 2 m/s. The coefficient of friction between the conveyor belt and...
- Read the following statements: A. When small temperature difference between a liquid and its surrounding is doubled, the rate of...
- Same gas is filled in two vessels of the same volume at the same temperature. If the ratio of the number of molecules is 1 : 4,...
- Two identical positive charges Q each are fixed at a distance of '2a' apart from each other. Another point charge q_ 0 with mass...