Physics questions
20027 published questions with worked solutions.
- A current of 200 μA deflects the coil of a moving coil galvanometer through 60°. The current to cause deflection through π/10...
- Given below are two statements: Statements (I) : The limiting force of static friction depends on the area of contact and...
- A ball suspended by a thread swings in a vertical plane so that its magnitude of acceleration in the extreme position and lowest...
- Wheatstone bridge principal is used to measure of specific resistance (S₁) of given wire, having length L, radius r. If X is the...
- The total kinetic energy of 1 mole of oxygen at 27°C is [Use universal gas constant (R) = 8.31 J/mole K]
- During an adiabatic process, the pressure of a gas is found to be proportional to the cube of its absolute temperature. The ratio...
- Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : The...
- Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : In...
- The equation of state of a real gas is given by (P + a V^2 )(V - b) = RT, where P, V and T are pressure, volume and temperature...
- The atomic mass of ₆C¹² is 12.000000 u and that of ₆C¹³ is 13.003354 u. The required energy to remove a neutron from ₆C¹³, if...
- An object is placed in a medium of refractive index 3. An electromagnetic wave of intensity 6 × 10⁸ W/m² falls normally on the...
- When a Polaroid sheet is rotated between two crossed polaroids then the transmitted light intensity will be maximum for a...
- A closed organ pipe 150 cm long gives 7 beats per second with an open organ pipe of length 350 cm, both vibrating in fundamental...
- A body falling under gravity covers two points A and B separated by 80 m in 2 s. The distance of upper point A from the starting...
- Two charges of –4 μC and + 4 μC are placed at the point A(1, 0, 4) m and B(2, –1, 5) m located in an electric field E = 0.20 , i...
- The electric potential at the surface of an atomic nucleus (z = 50) of radius 9 × 10⁻¹³ cm is ____ × 10⁶ V.
- If Rydberg's constant is R, the longest wavelength of radiation in Paschen series will be 7R , where α = ____.
- A series LCR circuit with L = 100 mH, C = 10^ -3 F and R = 10 Ω, is connected across an ac source of 220 V, 50 Hz supply. The...
- The reading of pressure metre attached with a closed pipe is 4.5 × 10⁴ N/m². On opening the valve, water starts flowing and the...
- A ring and a solid sphere roll down the same inclined plane without slipping. They start from rest. The radii of both bodies are...