Q:

Optical fiber works on the principle of

A) Scattering	B) interference
C) total internal reflection	D) refraction

Answer & Explanation Answer: C) total internal reflection

Explanation:

Optical_fiber_works_on_the_principle_of1556277954.jpg image

Optical fiber works on the principle of total internal reflection.

The Total Internal Reflection is the phenomenon in which the complete reflection of a light ray reaching an interface with a less dense medium when the angle of incidence exceeds the critical angle.

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

40 17919

Q:

Which number will complete the series?

14, 27, 52, 101, 198, ?

A) 381	B) 395
C) 391	D) 394

Answer & Explanation Answer: C) 391

Explanation:

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Filed Under: Verbal Reasoning - Mental Ability

0 17890

Q:

How many joining conditions are required to join 4 tables in SQL?

A) 1	B) 2
C) 3	D) 4

Answer & Explanation Answer: C) 3

Explanation:

To join 'n' tables 'n-1' conditions should be satisfied.

So to join 4 tables 3 conditions should be satisfied.

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Filed Under: Oracle Certification
Job Role: Analyst , Database Administration , IT Trainer

38 17874

Q:

The world famous 'Khajuraho' sculptures are located in

A) Gujarat	B) Madhya Pradesh
C) Orissa	D) Maharashtra

Answer & Explanation Answer: B) Madhya Pradesh

Explanation:

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Filed Under: Famous Places

58 17863

Q:

The absolute value of charge on electron was determined by

A) J.J.Thomson	B) R.A. Millikan
C) Rutherford	D) Chadwick

Answer & Explanation Answer: B) R.A. Millikan

Explanation:

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Filed Under: Chemistry

59 17848

Q:

The radioactive element most commonly detected in humans is

A) potassium-40	B) cobalt-60
C) iodine-131	D) plutonium-238

Answer & Explanation Answer: A) potassium-40

Explanation:

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Filed Under: General Science

94 17830

Q:

Which batsman started his international cricketing career at the age of 16

A) Suresh Raina	B) Sachin Tendulkar
C) Piyush Chawla	D) Rahul Dravid

Answer & Explanation Answer: B) Sachin Tendulkar

Explanation:

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Filed Under: Sports

57 17814

Q:

Who coined the term 'Hindu rate of growth' for Indian economy

A) A.K.Sen	B) Kirit S.Parikh
C) Raj Krishna	D) Montek Singh Ahluwalia

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