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
Answer: B
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
Answer: C
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
Answer: B
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
Answer: C
Q086) The pendulum clock can be run at high speed in _______:
A) Summer
B) Winter
C) Spring
D) Rainy Season
Answer: B
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
Answer: C
Q088) Identify the odd colour from the following:
A) Green
B) Brown
C) Red
D) Yellow
Answer: B
Q089) Kepler’s first law is known as the law of _________:
A) Ellipse
B) Harmonies
C) Motion
D) Equal Area
Answer: A
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
Answer: C
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
Answer: A
Q092) Which Greek letter denotes wavelength:
A) Epsilon
B) Mu
C) Omega
D) Lambda
Answer: D
Q093) The absolute refractive index of air is:
A) 1.03
B) 1.003
C) 1.0003
D) None of These
Answer: C
Q094) What is the standard room temperature on the Kelvin scale:
A) 198K
B) 210K
C) 273K
D) 298K
Answer: D
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
Answer: A
Q096) The ability to do work is referred to as _________:
A) Pressure
B) Force
C) Energy
D) None of These
Answer: C
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
Answer: C
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
Answer: A
Q099) The mass of an atom resides in _________ of the atom:
A) Nucleus
B) Vacant Space
C) Electron Cloud
D) Proton Cloud
Answer: A
Q100) Which of the following is directly proportional to the potential difference:
A) Current
B) Time
C) Resistivity
D) Power
Answer: A