NTSE Stage-2 (National-Level) Scholastic-Aptitude & Language Comprehension: Questions 369 - 371 of 816

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Question number: 369

» Physics » Light

MCQ▾

Question

Consider the following statements

I. Concave mirror forms virtual and enlarged image of a real object placed very near to it, so it is used by dentists to examine teeth.

II. Concave lens always form virtual image of smaller size of a real object and it is thinner in middle.

III. Plane mirror always forms virtual image of the same size of a real object.

IV. Convex mirror always forms virtual image of bigger size of a real object.

V. Convex lens forms real and diminished image of a real object placed near to it, so it is used as reading glass.

Which of the above statements is/are correct ?

Choices

Choice (4) Response

a.

I, II and III

b.

II and III

c.

IV and V

d.

All of the above

Question number: 370

» Biology » Soil

MCQ▾

Question

Which of the following is correct in response to soil?

Choices

Choice (4) Response

a.

Clay particles are light as they hold less water and the space between sand particles is less

b.

Clay particles are heavy as they hold more water and the space between sand particles is more

c.

Clay particles are heavy as they hold more water and the space between sand particles is less

d.

Clay particles are light as they hold more water and the space between sand particles is more

Question number: 371

» Mathematics » Arithmetic

MCQ▾

Question

The cost of a pen is Rs. 5 and the cost of a pencil is Rs. 1. The ratio between number of pen and pencil is 2: 3. If 12 % and 10 % of cost of pen and pencil respectively is increased, then the total selling price of both is Rs. 725. What is the difference between number of pen and pencil?

Choices

Choice (4) Response

a.

30

b.

63

c.

59

d.

50

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