Q:

A boy sitting in a train moving with a uniform velocity drops a coin outside. A man standing outside the train will find the trajectory of the coin to be

A) a parabola	B) a horizontal straight line
C) a vertical straight line	D) a circle

Answer & Explanation Answer: A) a parabola

Explanation:

Parabola, because when the coin is dropped at a particular point, it has the same velocity as the running train. So, by Newton's first law, it continues its motion horizontally with that velocity. But then, it is also pulled down by earth's gravity continuously. In this situation its horizontal motion gives way to the parabolic motion until it reaches the ground.

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Filed Under: Physics

3 4241

Q:

Karnataka Bank Limited has recently launched Missed Call Banking Facility. Which of the following Statements are true regarding this?

(1) After giving missed call, the customer gets his account balance/mini statement through SMS on his mobile

(2) This Facility is free of cost

(3) Bank customers can give missed call from their registered mobile number to the designated numbers of the Bank and Know balance in their account or get mini statement

(4) These services are available only from registered mobile number of a customer to ensure confidentiality of the account details.

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

Answer & Explanation Answer: D) 1,2,3 and 4

Explanation:

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Filed Under: General Awareness

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Q:

What treat was invented by 11-year-old Frank Epperson in 1905?

A) Popsicle	B) Banana split
C) Cotton candy	D) Cracker Jacks

Answer & Explanation Answer: A) Popsicle

Explanation:

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Filed Under: Inventions

4 4239

Q:

Who among the following is NOT a dancer of Odissi?

A) Sanjukta Panigrahi	B) Sonal Mansingh
C) Madhavi Mudgal	D) Yamini Krishnamurthy

Answer & Explanation Answer: D) Yamini Krishnamurthy

Explanation:

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Filed Under: Famous Personalities
Exam Prep: Bank Exams

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Q:

What is refractive index ?

A) it is defined as the ratio of speed of light in the medium to the speed of light in vacuum.	B) it is defined as the product of speed of light in medium and in vacuum.
C) it is defined as the ratio of speed of light in vacuum to the speed of light in the medium .	D) None of above

Answer & Explanation Answer: C) it is defined as the ratio of speed of light in vacuum to the speed of light in the medium .

Explanation:

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Filed Under: Physics

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Q:

By tradition, when does the presidential campaign begin?

A) When a candidate is officially nominated at the national convention	B) With the New Hampshire primary
C) In September, following the national convention	D) After a candidate has gained enough electoral votes in the primaries

Answer & Explanation Answer: A) When a candidate is officially nominated at the national convention

Explanation:

When a candidate is officially nominated at the national convention, then the presidential campaign begins.

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

1 4238

Q:

Of the following radiations, the most easily stopped by air

A) alpha - rays	B) beta - rays
C) gamma -rays	D) x - rays

Answer & Explanation Answer: A) alpha - rays

Explanation:

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Filed Under: Chemistry

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Q:

By volume, 21% of air is _______________.

A) hydrogen	B) oxygen
C) nitrogen	D) carbon dioxide

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