Questions

Q:

Which type of electromagnetic radiation has the shortest wavelength?

A) Gamma rays B) X-rays
C) Radio waves D) Infrared rays
 
Answer & Explanation Answer: A) Gamma rays

Explanation:

The order of wavelengths of electromagnetic spectrum is as follows ::

(Shortest to Longest) - Gamma, X-Rays, UV, Visible, Infrared, Microwaves, Radio Waves.

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Q:

What is the effective resistance (in Ω) of two resistors 12 Ω and 24 Ω connected in parallel?

A) 36 B) 8
C) 16 D) 72
 
Answer & Explanation Answer: B) 8

Explanation:
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Q:

What is the name of first solar mission of Indian Space Research Organisation set to be launch in 2019?

A) Halo–L1 B) Aditya–L1
C) Corona–L1 D) Ravi – L1
 
Answer & Explanation Answer: B) Aditya–L1

Explanation:
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Q:

Which of the following gases is used to prevent food material from getting oxidised?

A) Oxygen B) Chlorine
C) Nitrogen D) Hydrogen
 
Answer & Explanation Answer: C) Nitrogen

Explanation:
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Q:

Which of the following is NOT a radioactive element?

A) Uranium B) Plutonium
C) Titanium D) Thorium
 
Answer & Explanation Answer: C) Titanium

Explanation:
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Q:

The credit for classifying the elements on the basis of their atomic masses goes to

A) John Dalton B) John Alexander Reina Newlands
C) Dmitri Mendeleev D) Johann Wolfgang Dobereiner
 
Answer & Explanation Answer: C) Dmitri Mendeleev

Explanation:
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Q:

Which Indian state is the largest producer of Soyabean?

A) Himachal Pradesh B) Madhya Pradesh
C) Andhra Pradesh D) Arunachal Pradesh
 
Answer & Explanation Answer: B) Madhya Pradesh

Explanation:
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Q:

Which one of the following is also regarded as Disguised unemployment?

A) Underemployment B) Frictional unemployment
C) Seasonal unemployment D) Cyclical unemployment
 
Answer & Explanation Answer: A) Underemployment

Explanation:
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