Physics Test 25
Total Questions: 25
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A ) Colour of the rainbow
B ) Colour in the spectrum of white light
C ) Colours which cannot be produced ✅
D ) Colour found in nature
A ) Dispersion
B ) Refraction
C ) Diffraction
D ) Total internal reflection ✅
A ) Heat and light are electromagnetic radiations and travel much faster than sound
B ) Sound waves get attenuated completely before they reach the earth
C ) The process involved in the interior of the sun and the stars relate to atomic and subatomic particles and not molecules and their vibrations
D ) The outer space is an absolute vacuum ✅
A ) It contains more electrical energy
B ) It is free from voltage fluctuations
C ) Its generation costs much less
D ) It can be transmitted over long distances with minimum power loss ✅
A ) 5 km per second
B ) 6 km per second
C ) 11 km per second ✅
D ) 20 km per second
A ) Induction coil
B ) Transformer ✅
C ) Transistor
D ) Rectifier
A ) Viscosity
B ) Surface tension ✅
C ) Atmospheric pressure
D ) Gravity
A ) Differential scattering of sunlight by the atmosphere ✅
B ) Total internal reflection of the sunlight by the atmosphere
C ) Absorption of sunlight
D ) Refraction of sunlight by the atmosphere
A ) Thick wire,high melting point alloy,short length ✅
B ) Thick wire,low melting point alloy,large length
C ) Shirt length,low melting point alloy,thin wire
D ) Large length,low melting point alloy, thin wire
A ) 1/10
B ) 1/4 ✅
C ) 1/2
D ) 3/4
A ) Green
B ) Yellow
C ) Blue
D ) Red ✅
A ) Plane mirror
B ) Concave mirror ✅
C ) Concave lens
D ) Convex mirror
A ) PVC
B ) Glass
C ) Rubber
D ) Graphite ✅
A ) Surface tension ✅
B ) Viscosity
C ) Density
D ) Vapour pressure
A ) High resistance and high inductance
B ) Low resistance and high inductance ✅
C ) High resistance and low inductance
D ) Low resistance and low inductance
A ) Ability of the current they carry
B ) Formation of crystal lattice
C ) Binding energy of their electrons
D ) Mutual width of their energy gaps ✅
A ) Electromagnetic Induction ✅
B ) Electrovalency
C ) Gay Lussac's law of combining volumes
D ) Boyle's law
A ) Momentum
B ) Velocity ✅
C ) Speed
D ) Acceleration
A ) Conduction
B ) Convection
C ) Reflection
D ) Radiation ✅
A ) Outside is more than inside the roof
B ) Inside is more than outside the roof ✅
C ) Increase due to wind velocity
D ) Is exerted by air from outside
A ) Chemical effect of current
B ) Heating effect of current
C ) Magnetic effect of current
D ) Discharge of electricity through gases ✅
A ) The rice which deposits on the freezer
B ) The evaporation of a volatile liquid ✅
C ) The sudden expansion of a compressed gas
D ) None of these
A ) Oxidation of tungsten filament ✅
B ) Bursting of the bulb
C ) Loss of light due to absorption
D ) None of these
A ) Avoid slipping
B ) Increase speed
C ) Reduce fatigue
D ) Increase stability
A ) Law of inertia
B ) Forces of friction ✅
C ) Conservatism of momentum
D ) Gravity