There are discrete energy levels in atoms. It was first experimentally demonstrated by (A) Marsden’s experiment (B) Rutherford’s experiment (C) Somerfield experiment (D) Franck Hertz experiment 0 Physics MCQs Author: sinxoo Report : If answer is wrong. July 31, 2021
Two sources of sound are said to be coherent if (A) They produce sounds of equal intensity (B) They produce sound waves with zero or constant phase different all instant of time (C) They produce sounds of equal frequency (D) They produce sound waves vibrating with the same phase 0 Physics MCQs Author: sinxoo Report : If answer is wrong. July 31, 2021
The henry is the unit for (A) Magnetic field (B) Magnetic flux (C) Resistance (D) Inductance 0 Physics MCQs Author: sinxoo Report : If answer is wrong. July 31, 2021
Ball pen function on the principle of (A) Viscosity (B) Boyle’s law (C) Surface tension (D) Gravitational force 0 Physics MCQs Author: sinxoo Report : If answer is wrong. July 31, 2021
When the length of a microscope tube increase, its magnifying power (A) Does not Change (B) Increases (C) Decreases (D) May increase or decrease depending on the observer and the place of observation 0 Physics MCQs Author: sinxoo Report : If answer is wrong. July 31, 2021
A voltmeter has resistance of 2000 ohms and it can measure up to 2V. If we want to increase its range to 10V then required resistance in series will be (A) 8000 ohm (B) 4000 ohm (C) 6000 ohm (D) 2000 ohm 0 Physics MCQs Author: sinxoo Report : If answer is wrong. July 31, 2021
A ten-ohm electric heater operates on a 110 V line. Calculate the rate at which it develops heat in watts: (A) 1310 W (B) 810 W (C) 1210 W (D) 670 W 0 Physics MCQs Author: sinxoo Report : If answer is wrong. July 31, 2021
Which of the following particles would experience the largest magnetic force when projected with the same velocity perpendicular to a magnetic field? (A) Li+ (B) He+ (C) Electron (D) Proton 0 Physics MCQs Author: sinxoo Report : If answer is wrong. July 31, 2021
The force between two charges 0.06 m apart is 5 N. If each charge is moved towards the other by 0.01 m, then the force between them will become (A) 7.20 N (B) 11.25 N (C) 22.50 N (D) 45 0 Physics MCQs Author: sinxoo Report : If answer is wrong. July 31, 2021
The dimensional formula for the modulus of elasticity is same as that for: (A) Strain (B) Velocity (C) Surface tension (D) Stress 0 Physics MCQs Author: sinxoo Report : If answer is wrong. July 31, 2021