Questions

Q:

The Ozone layer is present in which atmospheric layer?

A) Lithosphere B) Ionosphere
C) Stratosphere D) Biosphere
 
Answer & Explanation Answer: C) Stratosphere

Explanation:
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Q:

A computer language that expresses the presentation of structured documents, such as CSS, is called _____.

A) Command Language B) Machine Language
C) Markup Language D) Style Sheet Language
 
Answer & Explanation Answer: D) Style Sheet Language

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Q:

When body is accelerated--

A) Its velocity never changes. B) Its speed will always change.
C) Its direction always changes. D) Its speed may or may not change.
 
Answer & Explanation Answer: D) Its speed may or may not change.

Explanation:

Uniform circular motion, that is constant speed along a circular path, is an example of a body experiencing acceleration resulting in velocity of a constant magnitude but the change of direction

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Q:

A sound wave has a frequency of 4 kHz and a wavelength of 40 cm. The time taken by the sound wave to travel a distance of 3.2 km is

A) 0.5 s B) 2.0 s
C) 4.0 s D) 1.0 s
 
Answer & Explanation Answer: B) 2.0 s

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Q:

Find the power of a convex lens if the image formed is at a distance of 20 cm from the lens when the object is placed on the other side of the lens at 25 cm from the optical centre?

A) 1 diopters B) -9 diopters
C) 9 diopters D) -1 diopters
 
Answer & Explanation Answer: C) 9 diopters

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Q:

The value of universal gravitation constant (G) was determined by

A) Henry Cavendish B) Antoine L Lavoisier
C) Isaac Newton D) John Dalton
 
Answer & Explanation Answer: A) Henry Cavendish

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Q:

In the names Mangifera indica (mango), Solanum tuberosum (potato) and Panthera leo (lion), what does the three names, indica, tuberosum and leo, represent?

A) Binomial Nomenclature B) Taxonomic Hierarchy
C) Identification D) Specific Epithet
 
Answer & Explanation Answer: D) Specific Epithet

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Q:

Part IV of constitution of India deals with which of the following?

A) The Union B) The States
C) Fundamental Rights D) Directive Principles of State Policy
 
Answer & Explanation Answer: D) Directive Principles of State Policy

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