For production of beats the two sources must have (A) Different frequencies and the same amplitude (B) Different frequencies (C) Different frequencies, same amplitude, and same phase (D) Different frequencies and same phase 0 Physics MCQs Author: MCQs Master Report : If answer is wrong. July 31, 2021
A pendulum clock set to give correct time in Karachi is taken to Quetta. It would give correct time if (A) The mass of the pendulum is increased (B) The mass of the pendulum is decreased (C) The length of the pendulum is increased (D) The length of the pendulum is decreased 0 Physics MCQs Author: MCQs Master Report : If answer is wrong. July 31, 2021
The velocity of a particle at an instant is 10 m/s and after 5s the velocity of the particle is 20 m/s. The velocity 3s before in m/s is: (A) 6 (B) 8 (C) 4 (D) 7 0 Physics MCQs Author: MCQs Master Report : If answer is wrong. July 31, 2021
According to classical theory the proposed circular path of an electron in Rutherford model of atom will be (A) Straight line (B) Circular (C) Parabolic (D) Spiral 0 Physics MCQs Author: MCQs Master Report : If answer is wrong. July 31, 2021
Choose the correct statement (A) An ammeter should have small resistance and a voltmeter should have large resistance (B) An ammeter should have large resistance and a voltmeter should have small resistance (C) Both an ammeter and a voltmeter should have large resistance (D) Both an ammeter and voltmeter should have small resistance 0 Physics MCQs Author: MCQs Master Report : If answer is wrong. July 31, 2021
A converging lens is used to form an image on a screen. When the upper half of the lens is covered by an opaque screen (A) No change either in size or in intensity (B) Intensity of the image will decrease (C) Half the image will disappear (D) Intensity of the image will increase 0 Physics MCQs Author: MCQs Master Report : If answer is wrong. July 31, 2021
The half-life of a radio-isotope is 5 years. The fraction of atoms decayed in this substance after 15 years will be (A) 8-May (B) 8-Jul (C) 4-Mar (D) 1 0 Physics MCQs Author: MCQs Master Report : If answer is wrong. July 31, 2021
The volt/metre is the unit of: (A) Force (B) Work (C) Potential (D) Electric field intensity 0 Physics MCQs Author: MCQs Master Report : If answer is wrong. July 31, 2021
What remains constant when the earth revolves around the sun? (A) Linear kinetic energy (B) Linear momentum (C) Angular kinetic energy (D) Angular momentum 0 Physics MCQs Author: MCQs Master Report : If answer is wrong. July 31, 2021
A train of 150 m length is going towards north direction at a speed of 10 ms-1. A parrot flies at a speed of 5 ms-1towards south direction parallel to the railway track. The time taken by the parrot to cross the train is equal to (A) 8 s (B) 10 s (C) 12 s (D) 15 s 0 Physics MCQs Author: MCQs Master Report : If answer is wrong. July 31, 2021