NSO Level 1- Science Olympiad (SOF) Class 10: Questions 472 - 476 of 986

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Question 472

Question

MCQ▾

A circuit has a battery voltage of 30 V. A lamp resistance of 6 Ω is connected to the circuit. Calculate the current and the power of the circuit.

Choices

Choice (4)Response

a.

b.

c.

d.

Question 473

Question

MCQ▾

Read the given statements and mark the correct option

Statement 1: The change in the focal length of human eye is caused due to Ciliary muscles

Statement 2: The image formed by retina of human eye is Virtual and erect

Choices

Choice (4)Response

a.

Only statement 1 is correct

b.

Statement 1 and 2 is correct

c.

Statement 1 and 2 is incorrect

d.

Only statement 2 is correct

Question 474

Question

MCQ▾

The stage at which there is a gradual change in structure of reproductive organs in human male and female is called

Choices

Choice (4)Response

a.

Puberty

b.

Spermatogenesis

c.

Oogenesis

d.

Menarche

Question 475

Question

MCQ▾

Filament of an electric bulb is made up of tungsten metal because of

Choices

Choice (4)Response

a.

Low melting point

b.

Low resistivity

c.

Burn even at higher temperature

d.

All of the above

Question 476

Question

MCQ▾

Syphilis is a sexually transmitted infection caused by the bacteria

Choices

Choice (4)Response

a.

Francis Ella tularensis

b.

Treponema palladium

c.

Bacillus anthracis

d.

Mycobacterium leprae

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