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:

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:

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

3 4238

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

5 4238

Q:

During thunderstorm you are travelling in a car. To protect yourself from the lightning you will have to

A) remain in the car	B) get out of the car and lie flat in the ground
C) abandon the car and take shelter under a nearby tree	D) touch the nearest electric pole

Answer & Explanation Answer: A) remain in the car

Explanation:

The Whole car - the body and inside - can be considered to be a hallow conductor. During the thunderstorm the body - i.e, the outside- gets a charge but there will be no charge inside. so the inside is safe.

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Filed Under: Physics

8 4236

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

0 4236

Q:

Which of the following places is associated with Jainism?

A) Pava	B) Prayag
C) Shravasti	D) Kapilvastu

Answer & Explanation Answer: A) Pava

Explanation:

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Filed Under: Indian History

18 4235

Q:

Of the following radiations, the most easily stopped by air

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

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