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Q:

Which statement(s) is/are CORRECT regarding Dalton’s Atomic theory?

 

I. All matters are made of very tiny particles.

II. Atoms of different elements have different masses and chemical properties.

III. The relative number of atoms is variable in any compound.

 

A) Only I and II B) Only I and III
C) Only II and III D) All I, II and III
 
Answer & Explanation Answer: A) Only I and II

Explanation:
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Filed Under: Chemistry
Exam Prep: Bank Exams

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Q:

Improve the bracketed part of the sentence.

You are what you (have eaten).

A) will eat B) eat
C) shall eat D) no improvement
 
Answer & Explanation Answer: B) eat

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Filed Under: English
Exam Prep: Bank Exams

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Q:

A periscope works by the principle of

A) Total internal reflection B) Refraction
C) Diffraction D) Reflection & Refraction
 
Answer & Explanation Answer: A) Total internal reflection

Explanation:

A periscope is an optical instrument that uses a system of prisms, lenses, or mirrors to reflect images through a tube.

 

 per11526634345.jpg image

 

Light from a distant object strikes the top mirror and is then reflected at an angle of 90 degrees down the periscope tube. At the bottom of the periscope, the light strikes another mirror and is then reflected into the viewer’s eye.

 

Hence, A periscope works by the principle of Total internal reflection.

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

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Q:

Select the antonym of

sibilate

A) whiz B) boo
C) exalt D) rasp
 
Answer & Explanation Answer: C) exalt

Explanation:
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Filed Under: English
Exam Prep: Bank Exams

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Q:

Which crop was first cultivated in Sri Lanka under plantation agriculture?

 

A) Coffee B) Tea
C) Rubber D) Coconut
 
Answer & Explanation Answer: A) Coffee

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Filed Under: General Awareness
Exam Prep: Bank Exams

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Q:

Rihand Valley Project is located in the state of

A) Uttar Pradesh B) Bihar
C) Orissa D) Madhya Pradesh
 
Answer & Explanation Answer: A) Uttar Pradesh

Explanation:

It is a scheme across the river Rihand near Pipri in Mirzapur district of Uttar Pradesh

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Filed Under: Indian Geography

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Q:

Two cubes have their volumes in the ratio 1 : 27. Find the ratio of their surface areas.

A) 2:9 B) 3:9
C) 1:9 D) 4:9
 
Answer & Explanation Answer: C) 1:9

Explanation:

Let their edges be a and b. Then,

 

a3/b3 = 1/27 (or) (a/b)3 = (1/3)3 (or) (a/b) = (1/3).

 

\Ratio of their surface area = 6a2/6b2 = a2/b2 = (a/b)2 = 1/9, i.e. 1:9.

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Filed Under: Quantitative Aptitude - Arithmetic Ability

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Q:

Logical puzzle

Miss Anne has eleven kids in her class. She has a bowl containing eleven apples. Now Miss Anne want to divide the eleven apples to the kids, in such a way that a apple should remain in her bowl. How can Miss Anne do it?

Answer

Ten kids will get each one apple. The eleventh kid will get the apple with the bowl.

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Subject: Logic Puzzles

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