# Physics MCQs

Physics Mcqs for Test Preparation from Basic to Advance. Physics Mcqs are from the different sections of Physics. Here you will find Mcqs of Physics and quantum physics subject from Basic to Advance. Which will help you to get higher marks in Physics subject. These Mcqs are useful for students and job seekers i.e MCAT ECAT ETEA test preparation, PPSC Test, FPSC Test, SPSC Test, KPPSC Test, BPSC Test, PTS, OTS, GTS, JTS, CTS, NTS.

The dimension of elastic modulus is ___________________ ?

A. ML-1T-2
B. ML-2T-2
C. MLT-2
D. ML2T-2

Waves produced at the surface of water by a pencil executing vibrating motion if held vertically at a frequency of 50Hz are__________________?

A. Longitudinal
B. Transverse
C. Periodic
D. both A and C

Laplace found that the alternate compressions and rarefactions produced in sound waves follows ________________?

A. isothermal law
C. isochoric law
D. all of the above

The beats frequency (sensible) for a human car is _____________________?

A. 42Hz
B. 7 Hz
C. 256Hz
D. 262Hz

Fundamental frequency of stationary waves in open pipe is ______________ times the frequency in closed pipe?

A. One
B. Two
C. Four time
D. None of these

The current through a metallic conductor is due to the motion of _________________?

A. free electrons
B. protons
C. neutrons
D. still under controversy

A wire having very high value of conductance is said to be____________________?

A. very good conductor
B. moderately good conductor
C. an insulator
D. no specific criterion available

Production of heat due to an electric current flowing through a conductor is given by _________________?

A. Joule effect
B. Joule Thomson’s effect
C. Compton’s effect
D. Feed back effect

Three equal resistors connected in series with a source of e m f together dissipate 10 W of power each. What will be the power dissipated if the same resistors are connected in parallel across the same source of e m f?

A. 40 W
B. 90W
C. 100W
D. 120W

Thermocouples convert___________________?

A. heat energy into electrical energy
B. heat energy into light energy
C. heat energy into mechanical energy
D. mechanical energy into heat energy