Physics (General Science) : All SSC Exams Previous Years Questions Papers Solved Part 15

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Q.1:- Ball pen functions on the principle of ?

  1. Viscosity
  2. Boyle’s law
  3. Gravitational force
  4. Surface tension

Q.2:- As we go from Equator to North pole the value of ‘g’, the acceleration due to gravity ?

  1. Remains the same
  2. Decreases
  3. Increases
  4. None of the above

Q.3:- The best conductor of electricity among the following is ?

  1. Copper
  2. Iron
  3. Aluminium
  4. Silver

Q.4:- A water tank appears shallower when it is viewed from top due to ?

  1. Rectilinear propagation of light
  2. Reflection
  3. Total internal reflection
  4. Refraction

Q.5:- A black body can absorb radiations of ?

  1. Lower wavelength only
  2. Intermediate wavelengths only
  3. Higher wavelengths only
  4. All wavelengths

Q.6:- The Newton’s First Law is also called as ?

  1. Law of moments
  2. Law of Inertia
  3. Law of energy
  4. Law of momentum

Q.7:- If we want to calculate the pressure of a liquid at the bottom of a vessel, the quantity which is not required to determine it, is ?

  1. Height of the liquid column
  2. Surface area of the bottom of the vessel
  3. Density of the liquid
  4. Acceleration due to gravity at the bottom of the vessel

Q.8:- Moving electric charge produces ?

  1. Magnetic field
  2. Sound waves
  3. Light rays
  4. Heat waves

Q.9:- What happens to a liquid, when the vapour pressure equals the atmospheric pressure ?

  1. The liquid cools
  2. The liquid boils
  3. No change
  4. The liquid evaporates

Q.10:- When a person sitting on a swing stands up on the swing, the frequency of oscillation ?

  1. Decreases
  2. Increases
  3. Becomes Infinite
  4. Does not change

Q.11:- The blue colour of water in the sea is due to ?

  1. Absorption of other colours except blue by water molecules
  2. Scattering of blue light by water molecules
  3. Reflection of blue light by impurities in sea water
  4. Reflection of blue sky by sea water

Q.12:- Energy in reflected light ?

  1. Does not depends on the angle of incidence
  2. Increases with the increase in angle
  3. Decreases with the increase in angle of incidence
  4. Becomes maximum for angle of incidence equal to 45o
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Q.13:- Radioactive elements can be traced out in living cell through a technique called ?

  1. Centrifugation
  2. Chromatography
  3. Auto Radiography
  4. All of the above

Q.14:- Persistence of vision is the principle behind ?

  1. Binocular
  2. Cinema
  3. Periscope
  4. Camera

Q.15:- The wavelength at which the peak of intensity of blackbody radiation occurs ?

  1. Increases with increase in temperature
  2. Decreases with increase in temperature
  3. Is the same at all temperatures
  4. Does not follow any pattern as temperature changes

Q.16:- In the remote control of television, electromagnetic waves used are ?

  1. Ultraviolet
  2. Microwave
  3. Radio wave
  4. Infrared

Q.17:- A light ray travelling from denser to rarer medium at an angle of incidence more than critical angle of concerned media pair suffers.

  1. Reflection
  2. Refraction
  3. Diffraction
  4. Total internal reflection

Q.18:- Dioptere is the unit of ?

  1. Power of a lens
  2. Focal length of a lens
  3. Light intensity
  4. Sound intensity

Q.19:- Rocket works on the principle of ?

  1. Newton’s Third Law
  2. Newton’s First Law
  3. Newton’s Second Law
  4. Archimedes’ Principle

Q.20:- The threshold frequency is the frequency below which ?

  1. Photo current increases with voltage
  2. Photo current decreases with voltage
  3. Photo electric emission is not possible
  4. Photo current is constant

Q.21:- The motion of body around a circular path is an example of ?

  1. Uniform velocity, variable acceleration
  2. Uniform speed, uniform velocity
  3. Uniform speed, variable velocity
  4. Uniform speed, variable acceleration

Q.22:- An object which absorbs all colours and reflects non appears ?

  1. White
  2. Grey
  3. Blue
  4. Black

Q.23:- If an electron and a photon have the same wavelength, then they will have the same ?

  1. Velocity
  2. Linear Momentum
  3. Angular Momentum
  4. Energy

Q.24:- The cooling by a desert cooler is based on ?

  1. Hot air replacement
  2. Air dehydration
  3. Evaporative cooling
  4. Air Rehydration
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Q.25:- The redness in atmosphere at sunrise and sunset is due to ?

  1. Refraction of light
  2. Reflection of light
  3. Dispersion of light
  4. Scattering of light

 

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