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Free tnpsc model questions Online Test - MeritNotes
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Online Exam
No. of Questions :10
Remaining Time :
1. Power of accommodation is achieved by changing the _____ of the eye lens.
(a)
Focal length
(b)
Vision
(c)
Retina
(d)
Curvature
2. Irene Curie and F.Joliot discovered _____ in the year 1934.
(a)
Artificial radioactivity
(b)
Hydrogen bomb
(c)
Fluorescence
(d)
Natural radioactivity
3. _____ stated that the natural state of all Earthly bodies is at rest.
(a)
Newton
(b)
Galileo
(c)
Pluto direction
(d)
Aristotle
4. Convex lens always forms a real image, if the object is situated beyond
(a)
Focus
(b)
Radius of curvature
(c)
Centre of curvature
(d)
Optic centre
5. The resistance of material depends on
(a)
Area of cross section
(b)
Temperature
(c)
Length of conductor
(d)
All the above
6. Simple Microscope consists of
(a)
Large focal length of convex
(b)
Short focal length of concave
(c)
Large focal length of concave
(d)
Short focal length of convex lens
7. The explosion of hydrogen bomb is based on the principle of
(a)
Nuclear fusion reaction
(b)
Controlled fission
(c)
Uncontrolled fission reaction
(d)
Photo electric effect
8. _____ is used to fix the magnitude of the current through a circuit.
(a)
Ammeter
(b)
Electric resistance
(c)
Voltmeter
(d)
Resistor
9. Man-made radioactivity is also known as
(a)
Induced radioactivity
(b)
Spontaneous radioactivity
(c)
Artificial radioactivity
(d)
Induced, Artificial radioactivity
10. The formula used for Newton’s II law of motion is
(a)
Velocity = acceleration × time
(b)
Momentum = mass × velocity
(c)
$$Speed = {distance} /{time}$$
(d)
Force = mass × acceleration
