Physics Questions

Q:

Negative acceleration is in the opposite direction of:

A) force B) distance
C) velocity D) momentum
 
Answer & Explanation Answer: C) velocity

Explanation:
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5 2052
Q:

What is the unit of the physical quantity "Stress"?

A) newton second B) steradian
C) pascal D) joule
 
Answer & Explanation Answer: C) pascal

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1 2046
Q:

Which vitamin is also called as H vitamin?

A) Vitamin B7 B) Vitamin B12
C) Vitamin B3 D) Vitamin B5
 
Answer & Explanation Answer: A) Vitamin B7

Explanation:

Biotin is a water-soluble B vitamin, also called vitamin B7 and formerly known as vitamin H or coenzyme R.

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2 2045
Q:

If demand curve for alphonso mangoes is D = 25000 ­ 70P and supply curve is S = 10000 + 80P, find the equilibrium quantity?

A) 18,000 units B) 2,000 units
C) 1,800 units D) 200 units
 
Answer & Explanation Answer: A) 18,000 units

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4 2043
Q:

Increased wind speed is accompanied by a reduced air _____________.

A) humidity B) pressure
C) density D) aridity
 
Answer & Explanation Answer: B) pressure

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2 2032
Q:

What does it mean if a micrograph is false colored?

Answer

If a micrograph is false-colored, it means that the computer has created the colour for the object since we know that the electron microscopes sees only black and white colours.

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0 2030
Q:

The unit of energy in MKS system is

A) Joule B) Ohm
C) Erg D) Volt
 
Answer & Explanation Answer: A) Joule

Explanation:

The unit of energy in MKS system is Joule.

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4 2027
Q:

The reverse effect of X-ray emission is

A) Raman effect B) Compton effect
C) Zeeman effect D) Photo-electric effect
 
Answer & Explanation Answer: D) Photo-electric effect

Explanation:
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2 2019