Top 1000+ Solved Physics MCQ Questions Answer
Q. Change in quality of environment that can be harmful and unpleasant for living things is called
a. Energy
b. Pollution
c. Revolution
d. Transformation
Q. Which among the following lens is used to correct Presbyopia?
a. Concave
b. Convex
c. Cylindrical
d. Bifocal
Q. Who invented the Centigrade scale?
a. Anders Celsius
b. Daniel Gabriel Fahrenheit
c. William Thomsor
d. Wright Brothers
Q. The following is an amplifying device :
a. a transformer
b. a transistor
c. a diode
d. a resistor
Q. Which law states, "The rate of loss of heat by a body is directly proportional to the difference in temperature between the body and the surroundings."
a. Doppler's Effect
b. Newton's law of cooling
c. Kirchhoff's Law
d. Stefan's Law
Q. The constant temperature, the product of pressure and volume of a given amount of a gas is constant . This is .
a. Gay-Lussac law
b. Charles’s law
c. Boyle’s law
d. Pressure law
Q. The device used for measuring the wavelength of X-rays is –
a. G.M. Counter
b. Cyclotron
c. Bragg Spectrometer
d. Mass Spectrometer
Q. If a lift is going up with acceleration, the apparent weight of a body is -
a. More or less the true weight
b. Equal to the true weight
c. Less than the true weight
d. More than the true weight
Q. A wavelength of 0.3 m is produced in air and it travels at a speed of 300 m/s. Then it will be an
a. Audible wave
b. Infrasonic wave
c. Ultrasonic wave
d. Microwave
Q. Which instrument is used to measure altitudes in aircraft’s?
a. Audiometer
b. Ammeter
c. Altimeter
d. Anemometer