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 Physics Questions

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Q:

Find the power of a convex lens if the image formed is at a distance of 16 cm from the lens when the object is placed on the other side of the lens at 20 cm from the optical centre?

A) -3.75 diopters B) -11.25 diopters
C) 3.75 diopters D) 11.25 diopters
 
Answer & Explanation Answer: D) 11.25 diopters

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0 1918
Q:

At what temperature (in degree celsius), the numerical values on Celsius and Fahrenheit scales become equal?

A) –40 B) 40
C) 273 D) -273
 
Answer & Explanation Answer: A) –40

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2 1914
Q:

The basic Speed Law means

Answer

The Basic Speed Law states that you must never drive faster than is safe for present conditions, regardless of the posted speed limit.


For example, if you are driving 60 kmph in 45 kmph zone, you are not in safe driving and you just not following the speed law.

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Subject: Physics Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

0 1907
Q:

1kWh = ?

A) 3.6 x 105 J B) 3.6 x 106 J
C) 3.6 x 10-5 J D) 3.6 x 10-6 J
 
Answer & Explanation Answer: B) 3.6 x 106 J

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1 1907
Q:

Nautical miles is a unit of distance used in

A) Navigation B) Road mile
C) Astronomy D) Measuring the boundaries of a nation
 
Answer & Explanation Answer: A) Navigation

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1 1904
Q:

Find the power of a convex lens if the image formed is at a distance of 10 cm from the lens when the object is placed on the other side of the lens at 40 cm from the optical centre?

A) 12.5 diopters B) 7.5 diopters
C) -12.5 diopters D) -7.5 diopters
 
Answer & Explanation Answer: A) 12.5 diopters

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0 1903
Q:

A covex mirror of focal length f (in air) is immersed in a liquid (u=4/3). The focal length of the mirror in the liquid will be :

A) f B) (4/3)f
C) (3/4)f D) (7/3)f
 
Answer & Explanation Answer: A) f

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0 1902
Q:

The SI unit of intensity of sound is ______.

A) watt per square meter B) joule per square meter
C) newton per square meter D) tesla per square meter
 
Answer & Explanation Answer: A) watt per square meter

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0 1894