SOF - NSO Level 2 Sample Papers for Class 10
Resources:
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.
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.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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