National Science Olympiad Forum By SOF Olympiad Trainer - Page 2

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 4

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Class : Class 4
B

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 8

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Subject :NSO    Class : Class 10

A stream of electrons is projected horizontally to the left. A straight current carrying conductor is supported parallel to the electron stream and above it. If the current in the conductor is flowing from left to right then, what will be the effect on the electron stream ?

AThe stream of electrons will be pulled upwards.
BThe stream of electrons will be pushed downwards.
CThe stream of electrons will be retarded.
DThe stream of electrons will speed up towards the right.


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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 6

Refer to the given pie chart showing nutrients P, Q, R and S present in different foods and identify the correct statements regarding them.

(i) Food rich in P is taken by sportspersons which provides them with instant energy and it turns blue-black in colour on adding iodine solution.
(ii) S helps in retaining water in the body and maintains healthy bowel movement.
(iii) S is important for growth and repair of body tissues thus, required in more amount in person recovering from accident injuries.
(iv) R forms antibodies in the body and its deficiency causes marasmus characterised by dry and rough hair, swollen stomach and mental retardation in children.
(v) Food sample containing Q turns into purple or violet colour when treated with 2 drops of copper sulphate and sodium hydroxide solution.

A(i), (iii) and (iv) only
B(ii), (iii), (iv) and (v) only
C(i), (ii) and (v) only
D(ii), (iii) and (iv) only


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