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Organisation : Jagadis Bose National Science Talent Search JBNSTS
Exam Name : Vidyasagar Science Olympiad VSO
Document Type : Model Question
Year : 2023

Contents :

## JBNSTS Vidyasagar Science Olympiad Model Question

Layer 1 Model Questions :
1. (Unit of pressure × unit of volume) gives us the unit of physical quantity –
A. Force
B. Acceleration
C. Work
D. Power

Related / Similar Question Paper : FIITJEE Big Bang Edge Test Download Sample Paper

2. In a dry cell used in a torch –
A. thermal energy is converted into light energy.
B. chemical energy is converted into electrical energy.
C. thermal energy is converted into electrical energy
D. chemical energy is directly converted into light energy.

3. Identify the factor on which the boiling point of a liquid depends.
A. The density of the liquid
B. The presence of dissolved matter in the liquid
C. The refractive index of the liquid
D. The specific heat of the liquid

4. Which of the following phenomenon is NOT associated with light?
A. Dispersion
B. Convection
C. Reflection
D. Refraction

5. For the quantitative measurement of force we take the help of –
A. Newton’s law of gravitation
B. Newton’s first law of motion
C. Newton’s second law of motion
D. Newton’s third law of motion

6. In deserts, mirage happens due to –
A. Ordinary reflection
B. Total internal reflection
C. Defective vision due to heat
D. Refraction

7. Ratio of Magnetic length to the geometric length of a bar magnet is –
A. 0.75
B. 0.7
C. 1.25
D. 0.86

8. The impression of the flame of a candle kept in front of the pinhole is formed on screen in a pinhole camera. Identify the INCORRECT statement in this context
A. the flame appears upside down or inverted on the screen.
B. the flame’s impression gets blurred if the size of the pinhole is increased.
C. the size of the impression of the flame gets larger if the distance between the pinhole and screen is decreased.
D. the impression of the flame is obtained because light travels in a straight line.

9. In a pressure cooker the foodstuff gets boiled faster because –
A. pressure cooker takes heat from the burners at a faster rate.
B. higher pressure is developed inside a pressure cooker and foodstuff gets boiled faster.
C. lower pressure is created inside a pressure cooker by the release of steam and the foodstuff gets boiled faster.
D. a pressure cooker is made from materials with low thermal conductivity.

10. Which one of these liquid columns of various lengths given below does NOT approximately indicate the standard atmospheric pressure?
A. 762 mm of mercury
B. 76 cm of mercury
C. 10.3 m of water
D. 8.2 m of kerosene oil

11. When two blocks of ice are pressed together, they combine to form a single block of ice, but if two blocks of wax are pressed this does not happen. Why?
A. Gravitational attraction between ice blocks is stronger than gravitational attraction between wax blocks.
B. The applied pressure increases the melting point of ice, but decreases that of wax.
C. The applied pressure decreases the melting point of ice, but increases that of wax.
D. Water at the surface of contact of the blocks helps ice to stick together.

12. Two pieces of wood, one larger and one is smaller are taken out from one same log of wood. The larger piece is kept floating on water while the smaller one floats in a solution of sugar in water in two different bowls. Identify the correct statement in this context
A. Both of them are receiving equal buoyancy because both are floating.
B. Lighter liquid water provides relatively less buoyancy.
C. heavier liquid sugar solution provides more buoyancy.
D. Both the wooden pieces are receiving buoyancy equal to their respective weights

13. An element ‘Y’ has electronic configuration 2, 8, 6. The element ‘Y’ is a –
A. Non-metal
B. Neutron
C. Noble gas
D. Neon

14. For liquid state of matter, which is not true-
A. The particles gain energy.
B. The stored potential energy increases the space between particles.
C. The inter-particles attraction increased due to the increasing distance between the particles.
D. The particles become free and escape as a gas at the boiling point

15. The electrolyte used in copper plating of an article is
A. Copper Sulphate solution
B. Solid Copper Sulphate
C. Powdered Copper Sulphate
D. None of these

## What is Vidyasagar Science Olympiad?

** Vidyasagar Science Olympiad Scheme is a great initiative by School Education Department, Government of West Bengal and Jagadis Bose National Science Talent Search, Kolkata to identify and nurture the talented students of class IX towards strengthening the contribution of the students in our state in the national and international Olympiad examination and compete in the global platform.

** Students of class IX are of special significance as it is the period when students get preliminary exposure to the advanced level of every spectrum of science, be it Physical Science ( Physics and Chemistry of the materials), Life Science (Biology of living beings) or Mathematical science.

** If step taken to develop rational mind and scientific aptitude for students of this level, it will enrich human resources in the field of science and technology and strengthen the contribution of our State to the global level.

** To extract and identify the pre-madhyamik science talents (students of Class IX) from all corners of West Bengal a tri-layered examination system is designed.

** Early identification and nurturing through proper pedagogy, in turn will help us to tap the talent and modulate his/ her career paths in science and technology this will shape and enrich their in-depth scientific understanding and will help the students to pursue their carrier in science and to fit them in the global competition which in turn will be beneficial to enrich the pool of human resource from our state in the field of science and technology.

## Syllabus for Examination of VSO

For class IX : Up to class VIII science and mathematics syllabus of West Bengal Board.

Examination Pattern:
Layer-1 :
Subjects: Physical Science, Life Science and Mathematical science.
Question type: MCQ (There will be negative marking of ½ marks for each wrong answer).
Syllabus: Syllabus of examination will be up to class VIII science and mathematics syllabus of West Bengal Board.
Full Marks: 100 (Physical Science 40, Life Science 30 and Mathematical Science 30) for 50 MCQs. Each question carries 2 marks.
Language of question: Bengali and English..

Layer-2 :
Subjects: Physical Science, Life Science and Mathematical science.
Question type: MCQ (There will be negative marking of 1 mark for each wrong answer).
Full Marks: 100 (Physical Science 40, Life Science 30 and Mathematical Science 30) for 50 MCQs. Each question carries 2 marks.
Language of question: Bengali and English.
Examination centers : There may be one examination centre in each District.

Layer-3 :
Subjects: Physical Science, Life Science and Mathematical science.
Question type: Short answer type (no negative marking).
Full Marks: 60 (Physical Science 20, Life Science 20 and Mathematical Science 20) .
Language of question: Bengali and English.
Examination centers: To be announced later.