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Q:

Which one of the following can be used to confirm wether drinking water contains a gamma emitting isotope or not

A) Microscope B) Scintillation counter
C) Lead plate D) pectrophotometer
 
Answer & Explanation Answer: B) Scintillation counter

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Filed Under: Chemistry

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Q:

When light enters from air to water, then its 

A) frequency increases and speed decreases B) frequency is same but the wavelength is smaller in water than in air
C) frequency is same but the wavelength is larger in water than in air D) frequency and speed both decreases
 
Answer & Explanation Answer: B) frequency is same but the wavelength is smaller in water than in air

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Filed Under: Physics

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Q:

Which of the following was the first super computer developed in 1976?

 

A) Acom Atom B) Cray-1
C) PCW D) PET
 
Answer & Explanation Answer: B) Cray-1

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Filed Under: Computer
Exam Prep: Bank Exams

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Q:

When is the ' World environment Day ' celebrated

A) June 5 B) April 7
C) October 24 D) None of the above
 
Answer & Explanation Answer: A) June 5

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Filed Under: Important Days and Years

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Q:

A standing wave occurs when

A) a wave reflects upon itself B) the amplitude of a wave exceeds its wavelength
C) two waves overlap D) the speed of the wave is zero or near zero
 
Answer & Explanation Answer: A) a wave reflects upon itself

Explanation:

A standing wave also known as a stationary wave, is a wave in which its peaks or any other point on the wave do not move spatially.

This phenomenon can occur because the medium is moving in the opposite direction to the wave, or it can arise in a stationary medium as a result of interference between two waves traveling in opposite directions. The most common cause of standing waves is the phenomenon of resonance, in which standing waves occur inside a resonator due to interference between waves reflected back and forth at the resonator's resonant frequency.

 

Hence, standing wave occurs when a wave reflects upon itself.

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

7 8883
Q:

Try this Brain Bashing Challenge ?

17426130_1248673081906460_4073935778689070051_n1500012638.jpg image

A) A to G : 2, 3, 7, 6, 5, 1, 4 B) A to G : 1, 4, 5, 6, 2, 7, 3
C) A to G : 5, 4, 7, 6, 3, 1, 2 D) None
 
Answer & Explanation Answer: A) A to G : 2, 3, 7, 6, 5, 1, 4

Explanation:

This can be done in two ways

1. A to G : 2, 3, 7, 6, 5, 1, 4 

2. A to G : 4, 3, 7, 5, 6, 2, 1

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Filed Under: Math Puzzles
Exam Prep: Bank Exams , CAT
Job Role: Bank Clerk

39 8876
Q:

The Number of members included in the Constitution Drafting Committee was:

A) Seven B) Nine
C) Eleven D) Thirteen
 
Answer & Explanation Answer: A) Seven

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Filed Under: Indian Politics

20 8874
Q:

The 'Three Jewels ' (Triratnas) of jainism are

A) right faith or intentions, right knowledge and right conduct B) right action, right livelihood and right effort
C) right thoughts, non-violence and non-attachment D) rightspeech, right thinking and right behaviour
 
Answer & Explanation Answer: A) right faith or intentions, right knowledge and right conduct

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Filed Under: Indian History

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