Q:

A man jumping out of a moving train is thrown

A) forward	B) backward
C) sidewaqys	D) None of these

Answer & Explanation Answer: A) forward

Explanation:

At the time of jumping out he has the same velocity as the moving train

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Filed Under: Physics

34 10152

Q:

An atom has 7 electrons in its M - shell and contains 18 neutrons in its nucleus. What is its mass number

A) 25	B) 27
C) 35	D) 43

Answer & Explanation Answer: C) 35

Explanation:

According to Bohr model, Each shell can occupy 2 $n^{2}$ electrons in their orbits where n=1,2,3.. for K,L,M,..

The atom has 2 electrons in k, 8 electrons in L and 7 electrons in M = 2 + 8 + 7 = 17

And given that its nucleus has 18 neutrons

=> its mass number = number of (electrons + neutrons ) = 17 + 18 = 35

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Filed Under: Chemistry

45 10152

Q:

Name the only animal which cannot jump.

A) Guinea Pig	B) The elephant
C) Giraffe	D) Donkey

Answer & Explanation Answer: B) The elephant

Explanation:

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Filed Under: Animals and Birds
Exam Prep: Bank Exams

7 10150

Q:

Which of the following is the largest unit of storage?

A) GB	B) KB
C) MB	D) TB

Answer & Explanation Answer: D) TB

Explanation:

The storage capacity is measured in bytes, kilo bytes, mega bytes, giga bytes and tera bytes. The largest unit of storage is Tera bytes.

Which_of_the_following_is_the_largest_unit_of_storage1552389085.png image

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Filed Under: Computer
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

16 10148

Q:

A gas absorbs a photon of 355 nm and emits at two wavelengths. If one of the emissions is at 680 nm, the other is at :

A) 518 nm	B) 1035 nm
C) 325 nm	D) 743 nm

Answer & Explanation Answer: D) 743 nm

Explanation:

$\frac{1}{λ} = \frac{1}{λ 1} + \frac{1}{λ 2}$

$\frac{1}{355} = \frac{1}{680} + \frac{1}{λ 2}$

$\frac{1}{λ 2} = \frac{680 - 355}{680 \times 355}$

$\Rightarrow λ 2 = 743 n m$ .

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Filed Under: Chemistry
Exam Prep: AIEEE

12 10141

Q:

Veto power is not possessed by

A) U.K	B) U.S.A
C) Rrussia	D) West Germany

Answer & Explanation Answer: D) West Germany

Explanation:

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Filed Under: World Organisations

22 10128

Q:

The world's largest biofuel plant with production capacity of 110 million liters of fuel annually has been set up in

A) China	B) India
C) Brazil	D) USA

Answer & Explanation Answer: C) Brazil

Explanation:

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Filed Under: General Awareness

53 10127

Q:

90% of people fail to solve this math puzzle?

ninety_percent_fail_to_answer_this1588595933.jpg image

A) 45	B) -20
C) 35	D) -60

Answer & Explanation Answer: D) -60

Explanation:

A - A - A = 20
B - B - B = 15
C - C - C = 25

A = -20
B = -15
C = -25

=> A + B + C = (-20)+(-15)+(-25) = -20 - 15 - 25 = -60.

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Filed Under: Math Puzzles
Exam Prep: CAT , Bank Exams
Job Role: Bank Clerk , Bank PO

21 10121

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