We have collected important Physics one liner questions and answers. These physics general questions are frequently asked in many competative exams, you should go through it.
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Q 1.
What was the reason behind the splitting of different colours of light in a prism ?
Ans.
Dispersion of light
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Q 2.
How much calorie of energy is released by bolied egg ?
Ans.
77 calorie
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Q 3.
This statement is correct when we see rainbow ?
Ans.
The sun remains behind us and we face raindrops
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Q 4.
What is the minimum escape velocity of rocket to be launched into space ?
Ans.
11 km/sec
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Q 5.
One killowatt hour is equal ?
Ans.
3.6 megajoule
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Q 6.
When eye suffer from far-sightedness the image will form ?
Ans.
Behind the retina, light rays coverage
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Q 7.
Which techniques does the photostate machine works ?
Ans.
Electrostatic image-making
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Q 8.
What is the focus of distance when the capacity of lens has -2d ?
Ans.
- 0.5 m
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Q 9.
When the mass of a star is two times the mass of the sun. How it will come to an end ?
Ans.
Neutron Star
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Q 10.
What was happened to the reflection when a straight object placed in front of an convex mirror ?
Ans.
Virtual, straight and larger than object image
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Q 11.
Which conservation principle is applicable in the case of motion of rocket ?
Ans.
Change of momentum
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Q 12.
Why the needle of iron swims on water surface when it is kept gently ?
Ans.
Due to surface tension
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Q 13.
What was the reason behind the lightining glow is seen before the thunder is heard ?
Ans.
The speed of light is greater than the speed of sound
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Q 14.
What is the cause behind hurting a person on kicking a stone ?
Ans.
Inertia
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Q 15.
If the diameter of a bottle is raised then the rise of water in it will be ?
Ans.
Half
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Q 16.
What should a person do to when he try to kill the fish on the banks of the bond with a spear ?
Ans.
Must focus below the fish
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Q 17.
What is the efffect of an object when it is moving in a constant speed ?
Ans.
Is not accelerated
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Q 18.
An object covers distance which is directly proportional to the square of the time, its acceleration ?
Ans.
Constant
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Q 19.
When a strong beam of light is passed through a collidal solution the light will ?
Ans.
Be scattered
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Q 20.
Pressure cooker cooks faster because ?
Ans.
Higher temperature is attained for cooking
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Q 21.
Microphone is a device which transforms the ?
Ans.
Sound signal into current signal
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Q 22.
X-rays region lies between ?
Ans.
Gamma-rays and ultra violet rays
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Q 23.
When a ray of light goes from a dense medium to a rarer medium it will ?
Ans.
Bends away from the normal
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Q 24.
The unit of noise pollution is ?
Ans.
Decibel
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Q 25.
Materials for rain proof coats and tents owe their water proof properties to ?
Ans.
Surface tension
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Q 26.
Why does a cricket player a fast approaching ball by pulling his hand backward ?
Ans.
He amy need to exert less force
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Q 27.
When two ice cubes are pressed together, they join to form one cube. Which one activity can helps to hold them together ?
Ans.
Hydrogen Bond Formation
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Q 28.
This statement is correct about light ?
Ans.
1.It moves faster than the speed of sound
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Q 29.
This statement is incorrect about light ?
Ans.
It cannot pass through vacuum
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Q 30.
The motion of the wheels of a Bullock-Cart while moving on a road is an example of which motion ?
Ans.
Translatory and Rotatory Motion
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