SOF - NSO Level 2 Sample Papers for Class 10

Class 10 sample paper & practice questions for the level 2 of National Science Olympiad (NSO) are given below. Syllabus for level 2 is also mentioned for these exams. You can refer these sample paper & quiz for preparing for the exam.


Sample Questions from Olympiad Success:

Q.1 Q.2 Q.3 Q.4 Q.5 Q.6 Q.7 Q.8 Q.9 Q.10

Q.1

What is the charge flowing through a resistor R in 4 s?



a)

3 C

b)

6 C

c)

12 C

d)

18 C

Q.2

How much current will flow through a resistor of resistance 12 Ω if a battery of 18 V is connected across it?

a)

3.0 A

b)

4.5 A

c)

1.5 A

d)

6.0 A

Q.3

Which of the following does not produces yellow light?

(i) Sodium lamp

(ii) Sunlight

(iii) LPG gas

 

a)

Only (iii)

b)

Only (i) and (ii)

c)

Only (i) and (iii)

d)

Only (ii) and (iii)

Q.4

Consider the following statements and choose the correct option.

Statement 1: Lenz's law is derived from the law of conservation of charge.

Statement 2: A commutator alters the direction of the current in the coil every half rotation in a DC motor

a)

Only statement 1 is correct

b)

Only statement 2 is correct

c)

Both the statements are correct

d)

Both the statements are incorrect

Q.5

What happens when two compass needles are placed near a current carrying wire at points P and Q as shown below?



a)

Both the needles will not deflect

b)

Only needle P will deflect

c)

Both the needles will deflect in the same direction

d)

Both the needles will deflect in the opposite direction

Q.6

Which of the following increases the turning speed of a simple DC motor?

(i) An increase in the number of turns of the coil.

(ii) An increase in the input of the DC voltage.

(iii) The inserting of a copper core in the coil.

a)

Only (i) and (ii)

b)

Only (i) and (iii)

c)

Only (ii) and (iii)

d)

(i), (ii) and (iii)

Q.7

Which of the following factors affect the speed of the rotation of a direct current electric motor?

a)

The type of current

b)

The direction of the current

c)

The magnitude of the current

d)

The frequency of the current

Q.8

What is the smallest resistance that can be obtained by using a 6 Ω resistor and a 12 Ω resistor respectively connected in parallel?

a)

4 Ω

b)

6 Ω

c)

8 Ω

d)

12 Ω

Q.9

Which of the following statements is true of Faraday's laws of electromagnetic induction?

a)

Whenever magnetic flux linked with a circuit changes, induced e.m.f is produced

b)

The induced e.m.f lasts as long as the change in the magnetic flux continues

c)

The magnitude of the induced e.m.f is directly proportional to the rate of change of the magnetic flux linked with the circuit.

d)

All of the above

Q.10

What is the potential difference across bulb 'X' in the circuit shown below?



a)

1.5 V

b)

3.0 V

c)

4.5 V

d)

6.0 V

Your Score: 0/10



Answers to Sample Questions from Olympiad Success:

Q.1cQ.2cQ.3aQ.4bQ.5dQ.6aQ.7cQ.8aQ.9dQ.10a

Answers to Sample Questions from Olympiad Success:

Q.1 : c | Q.2 : c | Q.3 : a | Q.4 : b | Q.5 : d | Q.6 : a | Q.7 : c | Q.8 : a | Q.9 : d | Q.10 : a

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