Q:

Calculate the time period (in seconds) of a sound wave of wavelength 5m travelling with a speed of 500 m/s.

A) 0.01	B) 2500
C) 0.02	D) 1250

Answer & Explanation Answer: A) 0.01

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Filed Under: Physics
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Q:

Mechanical energy is equal to

A) Kinetic energy + Chemical energy	B) Kinetic energy + Potential energy
C) Kinetic energy + Heat energy	D) Kinetic energy + Electrical energy

Answer & Explanation Answer: B) Kinetic energy + Potential energy

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Filed Under: Physics
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Q:

As of February 2018, which Indian Paediatrician has been appointed as the Deputy Director General (Programmes) in the World Health Organisation (WHO)?

A) Dr. Indira Hinduja	B) Dr. SI Padmavati
C) Dr. Kamini Rao	D) Dr. Soumya Swaminathan

Answer & Explanation Answer: D) Dr. Soumya Swaminathan

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Filed Under: Famous Personalities
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Q:

What is a spanning Tree?

Answer

A spanning tree is a tree associated with a network. All the nodes of the graph appear on the tree once. A minimum spanning tree is a spanning tree organized so that the total edge weight between nodes is minimized

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Subject: Technology

1 1046

Q:

The Union Home Ministry will set up an Indian Cyber Crime Coordination Centre (14C), an apex coordination centre at which place to deal with cybercrimes?

A) Hyderabad	B) Pune
C) Bengaluru	D) New Delhi

Answer & Explanation Answer: D) New Delhi

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Filed Under: Indian Geography
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Q:

Rickets is caused due to the deficiency of

A) Vitamin D	B) Vitamin A
C) Vitamin B	D) Vitamin C

Answer & Explanation Answer: A) Vitamin D

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Filed Under: Biology
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Q:

Which of the following is a feature of aerobic metabolism?

A) energy is produced more slowly than in anaerobic metabolism	B) energy is observed more slowly than in anaerobic metabolism
C) energy is produced more fastly than in anaerobic metabolism	D) energy is observed more fastly than in anaerobic metabolism

Answer & Explanation Answer: A) energy is produced more slowly than in anaerobic metabolism

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Filed Under: Biology
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Q:

Which of the following is a nitrogen-fixing bacteria?

A) Salmonella	B) Rhizobium
C) E.coli	D) Pseudomonas

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