If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
Which of the following is a characteristics of stationary waves?
They are formed by two identical waves travelling in opposite directions
they can be transverse or longitudinal
The distance between two successive nodes is one wavelength
The antinode is a point of minimum displacement
Correct answer is A
They are produced by the superposition of two progressive identical waves travelling in opposite directions
The radiator of a motor car is cooled by
radiation
conduction
convection
radiation and conduction
Correct answer is C
The function of the radiator of a motor car is to "collect" heat from the circulating water and radiate some out, but it is itself cooled by the fan adjacent to it. whose function is primarily based on convection
3 cm
5 cm
6 cm
8 cm
Correct answer is A
Real depth = thickness of the glass block = 9cm.
Refractive index of the glass material = 1.5
But Refractive index = Real depth/Apparent depth
=> 1.5 = 9/Apparent depth
therefore Apparent depth = 9/1.5 = 6cm.
therefore Apparent displacement of the Coin = 9.6
= 3cm
The effect of a particle in a fluid attaining its terminal velocity is that the
acceleration is maximum
weight is equal to the retarding force
buoyancy force is equal to the to the viscous retardind force
buoyancy force is more than the weight of the fluid displaced
Correct answer is B
No explanation has been provided for this answer.