Q.1:- The colours of stars depend on their ?
- Temperature
- Distance
- Radius
- Atmospheric Pressure
Q.2:- Tesla is a unit of magnetic ?
- Flux
- Induction
- Moment
- Field
Q.3:- Which one among the following doesn’t have any effect on velocity of sound ?
- Pressure
- Temperature
- Humidity
- Density
Q.4:- In a conductor ?
- There is no conduction band
- The forbidden energy gap is very wide
- The forbidden energy gap is very narrow
- The valence band and the conduction band overlap each other
Q.5:- If both the mass and the velocity of a body is increased to twice of their magnitude, the kinetic energy will increase by ?
- 2 times
- 4 times
- 8 times
- 16 times
Q.6:- Which of the following was the first theory of super conductivity ?
- Ginzburg Landau Theory
- London Theory
- Resonating valence bond theory
- Quantum field theory
Q.7:- Distant objects are visible as a little out of focus in this condition ?
- Presbiopia
- Hypermetropia
- Astigmatism
- Myopia
Q.8:- Which of the following are methods of heat transfer ?
- Convection
- Evaporation
- Revolution
- Thermal Expansion
Q.9:- The SI unit of luminous emittance is ?
- Lux
- Candela
- Lumen
- Lumen Second
Q.10:- The magnitude of current flowing between two end points of a conductor is proportional to the potential difference between them and is called as ?
- Avogadro’s law
- Rault’s law
- Ohms law
- Faraday’s law
Q.11:- On a cold day when the room temperature is 15 Deg C, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15 Deg C, because ?
- Metals have higher thermal capacity than plastics
- Plastics have a lower density than metals
- Metals are good conductors of heat
- Plastics have a higher thermal conductivity than metals
Q.12:- The quality or tone of a musical sound produced by a stringed instrument depends on ?
- Frequency of vibration
- Length of the strings in the instrument
- Amplitude of vibration
- Wave form of the sound
Q.13:- In which form is the supplied heat energy stored during change in temperature of substance ?
- Heat Energy
- Kinetic Energy
- Potential Energy
- Both Kinetic and Potential Energy
Q.14:- Electromagnet is constructed with which of the following ?
- Steel
- Soft Iron
- Aluminium
- Nickel
Q.15:- Fuse wire is made of an alloy of ?
- Tin and Lead
- Tin and Copper
- Lead and Copper
- Copper and Silver
Q.16:- Copper wires are generally used for electrical power transmission instead of Iron wire because ?
- Copper is cheaper than Iron
- Copper is lighter than Iron
- Copper is a better conductor of electricity than Iron
- Copper can take higher power than Iron
Q.17:- When we see an object, the image formed on the retina is ?
- Real and inverted
- Real and erect
- Virtual and erect
- Virtual and inverted
Q.18:- Flemings “Left Hand Rule” is associated with the effect of ?
- Electric Field on current
- Magnetic field on magnet
- Electric field on magnet
- Magnetic field on current
Q.19:- Sending a frame to a group of stations is known as ?
- Single casting
- Spreading
- Multicasting
- Casting
Q.20:- Hydraulic brakes in automobile work on ?
- Poiseuille’s principle
- Pascal’s principle
- Archimedes’ principle
- Bernoulli’s principle
Q.21:- Which of the following is optical illusion ?
- Rainbow
- Earthshine
- Halo
- Mirage
Q.22:- The sparkling of a diamond is due to ?
- Total internal reflection of light
- Interference of light
- Polarisation of light
- Refraction of light
Q.23:- Rainbow is seen after rain because of hanging molecules of water which act as ?
- Lenses
- Mirrors
- Prisms
- Slabs
Q.24:- A device which is used to limit the current in an electrical circuit is called a ?
- Grid
- Fuse
- Hub
- Conductor
Q.25:- The best material for the core of a transformer is ?
- Stainless steel
- Mild steel
- Hard steel
- Soft iron
