Physics Multiple Choice Questions and Answers - 1
Question: 1
How is the pressure cooker works?
(A) Steam inside the cooker makes food to cook with ease
(B) High pressure inside the cooker rises the boiling point of water
(C) Low pressure inside the cooker rises the boiling point of water
(D) Heat cannot escapes from the cooker
Ans: B
High pressure inside the cooker rises the boiling point of water
Question: 2
The angular speed of a whirlwind in a tornado towards the centre
(A) slowly becomes zero
(B) decreases rapidly
(C) remains constant
(D) increases
Ans: D
increases
Question: 3
The most familiar form of radiant energy in sunlight that cause tanning and has the potential for causing melanoma in humans is called
(A) Visible radiation
(B) Infra red radiation
(C) Ultra violet radiation
(D) Microwave radiation
Ans: C
Ultra violet radiation
Question: 4
The magnetic needle always points in _____ direction.
(A) North- East
(B) North-South
(C) West-South
(D) East-West
Ans: B
North-South
Question: 5
Light year is
(A) Light emitted by the sun in one year
(B) Time taken by light to travel from sun to earth
(C) The distance travelled by light in free space in one year
(D) Time taken by earth to go once around the sun
Ans: C
The distance travelled by light in free space in one year
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