Q:

Who of the following scientists is named after ISRO in sriharikota ?

A) APJ Abdul Kalam	B) Vikram Sarabhai
C) Homi J Baba	D) Satish Dhawan

Answer & Explanation Answer: D) Satish Dhawan

Explanation:

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Filed Under: General Awareness

38 6959

Q:

Natural radioactivity was discovered by

A) Rutherford	B) Becquerel
C) Curie	D) Schmidt

Answer & Explanation Answer: B) Becquerel

Explanation:

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Filed Under: Chemistry

14 6959

Q:

The Mohiniyattam dance form was developed in which state

Answer

Kerala

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Subject: Indian Culture

153 6959

Q:

A tennis ball machine serves a ball vertically into the air from a height of 2 feet, with an initial speed of 110 feet per second. After how many seconds does the ball attain its maximum height?

A) 2.87 sec	B) 3.44 sec
C) 4.65 sec	D) 5.41 sec

Answer & Explanation Answer: B) 3.44 sec

Explanation:

It is launched vertically with an initial speed of 110 ft/sec.

It will reach maximum height when the speed drops to 0.

Vo=110 feet per second

ho=2 feet

So, h(t) = -16t^2 +110t +2

Take the derivative: h'(t) = 110 -32t

The maximum height will be at the inflection when the derivative crosses the x-axis, then h'(t)=0.

So, set h'(t)=0 and solve for t:

0 = 110 -32t

-110 = -32t

t=3.4375

t=3.44 seconds.

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

3 6953

Q:

Which rock system has the maximum concentration of minerals?

A) Cuddapah system	B) Dharwar system
C) Gondwana system	D) Vindhyan system

Answer & Explanation Answer: B) Dharwar system

Explanation:

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Filed Under: Indian Geography

8 6952

Q:

October 3 is observed as _______

A) World Vegetarian Day	B) United Nations Day for South-South Cooperation
C) World Immunization Day	D) World Smile Day

Answer & Explanation Answer: D) World Smile Day

Explanation:

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Filed Under: Important Days and Years

6 6948

Q:

Who is the First Test Tube Twins Babies in the World?

A) Louise Brown & Vesli Multinder	B) Stephan & Amanda
C) Harsha & Indhira	D) Elizabeth Car & Carl Wood

Answer & Explanation Answer: B) Stephan & Amanda

Explanation:

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Filed Under: World History

14 6946

Q:

Limba Ram is associated with which of the following fields

A) Motion Pictures	B) Sports
C) Social Service	D) Politics

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