# 150+ Physics General Knowledge Questions: Page – 5

Q081) MHO is the unit of _________ of a substance:
A) Conductance
B) Resistivity
C) Conductivity
D) None of These

Answer: AQ082) Electric wires are generally coated with:
A) Polypropylene
B) Polyvinyl Chloride
C) Polyurethane
D) Polyethylene

Q083) In which of the following medium sound will travel with greater speed at 0°C:

A) Water
B) Hydrogen
C) Aluminium
D) All of These

Q084) The length of a person is 6 feet. The minimum height of a vertical mirror to see the full image in the mirror is:
A) 2 feet
B) 3 feet
C) 4 feet
D) None of These

Q085) Due to the ____________ we see the sun a few minutes before the actual sunrise:
A) Scattering of Light
B) Diffraction of Light
C) Refraction of Light
D) Both A and C

Q086) The pendulum clock can be run at high speed in _______:
A) Summer
B) Winter
C) Spring
D) Rainy Season

Q087) How much work is done to carry a 2-coulomb charge between two points, which has a potential difference of 5 volts:
A) 0.4 Joule
B) 2.5 Joule
C) 10 Joule
D) 20 Joule

Q088) Identify the odd colour from the following:
A) Green
B) Brown
C) Red
D) Yellow

Q089) Kepler’s first law is known as the law of _________:
A) Ellipse
B) Harmonies
C) Motion
D) Equal Area

Q090) ____________ is an example of gravitational potential energy:
A) A Moving Car
B) Bullet Fired from a Gun
C) Dam Water
D) None of These

Q091) The difference in temperature between the two bodies is 30° centigrade. What is the difference in Fahrenheit:
A) 54
B) 64
C) 68
D) 85

Q092) Which Greek letter denotes wavelength:
A) Epsilon
B) Mu
C) Omega
D) Lambda

Q093) The absolute refractive index of air is:
A) 1.03
B) 1.003
C) 1.0003
D) None of These

Q094) What is the standard room temperature on the Kelvin scale:
A) 198K
B) 210K
C) 273K
D) 298K

Q095) Identify the use of the Isotopes in uranium:
A) Fuel in Nuclear Reactor
B) Treatment of Goitre
C) Treatment of Cancer
D) Fuel in Aeroplanes

Q096) The ability to do work is referred to as _________:
A) Pressure
B) Force
C) Energy
D) None of These

Q097) Which of the following principles is involved in all the electric appliances such as electric irons, toasters, electric kettles, hair
dryers etc:
A) Resistance in Circuit
B) Current Passing in Series
C) Heating Effect of Current
D) Generation of Electric Current

Q098) In which of the following two ways can resistance be combined:
A) Series and Parallel
B) Serial and Across
C) Line and Across
D) Straight and Between

Q099) The mass of an atom resides in _________ of the atom:
A) Nucleus
B) Vacant Space
C) Electron Cloud
D) Proton Cloud