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 |
A man with myopic eyes cannot see objects at a distance of more than 60 cm from his eyes. Find the power of the lens to be used. |
| a) |
- 1.66 D |
| b) | + 60 D |
| c) | - 60 D |
| d) | 1/1.66 D |
Q.2 |
The ratios of wire A and wire B respectively are: Length LA/Length LB = 5/18 Diameter DA/Diameter DB = 2/3 Resistivity PA/Resistivity PB = 4/9 Calculate the ratio of the resistance of wire A and wire B. |
| a) |
5:8 |
| b) | 10:54 |
| c) | 18:5 |
| d) | 54:10 |
Q.3 |
A man suffering from myopia cannot see the objects distinctly at a distance greater than 2 m. Which lens is required to correct the defect? |
| a) |
-2 D |
| b) | + 2 D |
| c) | - 0.5 D |
| d) | + 0.5 D |
Q.4 |
Which of the following results when there is an increase in the population of sharks? Plankton → Fish → Seal → Shark |
| a) |
A decrease in the population of seals |
| b) | A decrease in the population of fish |
| c) | An increase in the population of seals |
| d) | An increase in the population of plankton |
Q.5 |
The difference between an AC and DC generator is __________. |
| a) |
An AC generator has a commutator and a DC generator has slip rings |
| b) | AC generator has slip rings and a DC generator has a commutator |
| c) | AC generator rotates only in one direction |
| d) | The polarity of the current changes for every half rotation in a DC generator |
Q.6 |
What is the effective resistance between P and Q in the circuit shown below?  |
| a) |
0.15 Ω |
| b) | 0.66 Ω |
| c) | 1.5 Ω |
| d) | 1.75 Ω |
Q.7 |
Two resistors of 4 Ω and 6 Ω are connected in parallel with a 6 V battery of negligible resistance. Calculate the current flowing through the battery. |
| a) |
1A |
| b) | 1.5 A |
| c) | 2 A |
| d) | 2.5 A |
Q.8 |
The power of a lens is + 2.5 D. What kind of lens is it and what is its focal length? |
| a) |
Concave lens, 100 cm |
| b) | Concave lens, 40 cm |
| c) | Convex lens, 40 cm |
| d) | Convex lens, 50 cm |
Q.9 |
A soft iron bar is introduced inside a current carrying solenoid. What happens to its magnetic field? |
| a) |
It will become zero |
| b) | It will decrease |
| c) | It will increase |
| d) | It will remain the same |
Q.10 |
Which of the following occurs due to the weakening of the ciliary muscles and diminishing flexibility of the eye lens? |
| a) |
Myopia |
| b) | Hypermetropia |
| c) | Presbyopia |
| d) | Astigmatism |
Your Score: 0/10
Answers to Sample Questions from Olympiad Success:
Q.1 : a | Q.2 : a | Q.3 : c | Q.4 : a | Q.5 : b | Q.6 : c | Q.7 : d | Q.8 : c | Q.9 : c | Q.10 : c
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