Top 1000+ Solved Physics MCQ Questions Answer
Q. Which of the following modes of expressing concentration is independent of temperature -
a. Molarity
b. Molality
c. Normality
d. Formality
Q. At boiling point of liquids, its –
a. Temperature increases
b. Atmospheric pressure increases
c. Temperature remains constant
d. Vapour pressure decreases
Q. Newton's first law is also known as .
a. Law of Friction
b. Law of Momentum
c. Law of Inertia
d. Law of Motion
Q. The humidity of air measured in percentage is called –
a. absolute humidity
b. specific humidity
c. relative humidity
d. all of these
Q. Who developed the theory of Evolution?
a. Charles Darwin
b. Isaac Newton
c. Pranav Mistry
d. Galileo Galilei
Q. Name the process by which bubbles from liquid are formed?
a. Effervescence
b. Surface Tension
c. Surface Energy
d. Degasification
Q. 'Parsec' is the unit measurement of –
a. Density of stars
b. Astronomical distance
c. Brightness of heavenly bodies
d. Orbital velocity of giant stars
Q. The phenomenon of change in direction of light when it passes from one medium to another is called -
a. Propagation
b. Reflection
c. Refraction
d. Dispersion
Q. The mercury and sodium street lamps light up because of –
a. Atomic emission
b. Atomic absorption
c. Electron emission
d. Electron absorption
Q. Who invented the Lightning Rod in 1749?
a. Benjamin Franklin
b. Nikola Tesla
c. Eli Whitney
d. George Washington
Q. When the milk is churned vigorously the cream from it is separated out clue to –
a. Centripetal force
b. Gravitational force
c. Frictional force
d. Centrifugal force
Q. The temperature at which the catalytic activity of the catalyst is maximum, is called
a. room temperature
b. critical temperature
c. absolute temperature
d. optimum temperature
Q. Which one of the following non-metals is not a poor conductor of electricity?
a. Sulphur
b. Selenium
c. Bromine
d. Phosphorus
Q. Which instrument is used to record Atmospheric pressure?
a. Thermometer
b. Barometer
c. Seismometer
d. Oscilloscope