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Q:

What causes brownian motion in colloids?

A) coagulation of particles and the dispersed phase B) erratic flashes of light
C) molecules of the dispersion medium colliding with dispersed phase particles D) All the above
 
Answer & Explanation Answer: C) molecules of the dispersion medium colliding with dispersed phase particles

Explanation:

When their is a colloid in the solution, then it will show the Brownian movement, such as dust particle in the air will show the Brownian movement.

 

Hence, Brownian movement arises due to the impact of the molecules of the dispersion medium with the colloidal particles. It has been postulated that the impact of the molecules of dispersion medium on the colloidal particles are unequal.

 

This leads to the zig-zag (random) motion of the colloidal particles.

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Filed Under: Physics
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
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6 6301
Q:

In which district of Andhra Pradesh, the Kuchipudi village is located from which the Kuchipudi dance

A) Anantapur B) Krishna
C) Kurnool D) Nellore
 
Answer & Explanation Answer: B) Krishna

Explanation:
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Filed Under: Indian Culture

86 6300
Q:

Which day was declared as the 'Direct Action Day' by the Muslim League ?

A) 3rd September 1946 B) 16th August 1946
C) 16th may 1946 D) 4th December 1946
 
Answer & Explanation Answer: B) 16th August 1946

Explanation:
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Filed Under: General Awareness

19 6299
Q:

Which among the following was sent by the Greek sovereigns as ambassadors o pataliputra ?

A) Plato B) Aristotle
C) Magasthenes D) None of these
 
Answer & Explanation Answer: C) Magasthenes

Explanation:
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Filed Under: Indian Culture

76 6298
Q:

FROZEN FOOD – Who discovered the first practical method of freezing food?

A) C. Birdseye B) F. Rozenosh
C) G. Findus D) R. Scott
 
Answer & Explanation Answer:

Explanation:
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Filed Under: Inventions

13 6296
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 6295
Q:

From the given words, select the word which cannot be formed using the letters of the given word.

ILLUSTRIOUS

A) Lust B) Trust
C) Riot D) Rust
 
Answer & Explanation Answer: B) Trust

Explanation:
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Filed Under: Verbal Reasoning - Mental Ability
Exam Prep: Bank Exams

0 6293
Q:

What Asks But Never Answers?

A) Teacher B) Telephone
C) Letter D) Owl
 
Answer & Explanation Answer: D) Owl

Explanation:

An owl.

"What noise does an owl make?

The sound an Owl makes, it sounds like, "Who?" to our ears.

They sounds entire lives asking the same question, but they'll never give any answers.

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Filed Under: Word Puzzles
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