Physics - MCQS with answers - Part I
Q1. Which are the materials generally used in electrical operations in electronics?a) Iron and tin
b) Lead and tin
c) Aluminium and lead
d) Aluminium and iron
View Answer / Hide AnswerQ2.Consider the following sentences "Concave lens always forms ______ "A) Erect, virtual and smaller image.
B) Inverted ,real and bigger image.
C) Straight , virtual and bigger image.
D) Bended, real and smaller image.
View Answer / Hide AnswerANSWER: A) Erect, virtual and smaller image.
Concave lens always form erect ,virtual and smaller image than the object.
a) 220k
b) 273k
c) 6500k
d) 9000k
View Answer / Hide AnswerANSWER: c) 6500k
White light is commonly described by it's color temperature .A traditional incandescent light source's color temperature is determined by comparing its hue with a theoretical black body radiator. The lamp's color temperature is the temperature in kelvin at which the heated black body radiator matches the hue of the lamp.
a) Isaac Newton
b) Hans Christian Oersted
c) Galileo Galilie
d) Thomas Edison
View Answer / Hide AnswerANSWER: c) Galileo Galilie
1) The reflection is known as Diffused reflection.
2) The reflection is known as infused reflection.
3) The reflection is known as regular reflection.
4) The reflection is known as irregular reflection
Choose the correct statements :
A) 1 and 2
B) 2 and 3
C) 3 and 4
D) 1 and 4
View Answer / Hide AnswerQ6.Consider the following statements1.The motion of the moon around the earth is due to the Centripetal force.
2.The centripetal force is provided by the force of attraction of the earth.
3. All the objects in the universe attracts each other by the frictional force.
4.Attractional force between the objects is proportional to their masses .
Choose the correct statements
a) 1,2 and 4
b) 1,2 and 3
c) 2 and 4
d) 3 only
View Answer / Hide AnswerANSWER: a) 1,2 and 4
All the objects in the universe attracts each other by the force of attraction between objects called Gravitational Force.
A) The angle of incidence is unequal to the angle of reflection .
B) The angle of refraction is equal to the angle of incidence.
C) Law of reflection are applicable only on plane surfaces.
D) The angle of incidence is equal to the angle of reflection.
View Answer / Hide AnswerANSWER: D) The angle of incidence is equal to the angle of reflection.
The incident ray ,the normal to the mirror at the point of incidence and
the reflected ray all lie in the same line and thus they are equal.
1) Concave
2) Convex
A)1 and 2
B)only 1
C)only 2
D)None
View Answer / Hide AnswerQ9.The force acting on an object perpendicular to the surface is calleda) Pressure
b) Thrust
c) Both of above
d) None
View Answer / Hide AnswerQ10.Angle of incidence is equal to the angle of reflection.a) Always
b) Sometimes
c) Under special conditions
d) Never
View Answer / Hide Answer
