National Science Olympiad Forum By SOF Olympiad Trainer - Page 1

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Subject :NSO    Class : Class 9

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 9

Refer to the given figure and select the correct statement regarding it.


A P is selectively permeable whereas S is freely permeable to small molecules.
B Q contains the green pigment molecules and is the site of dark reaction during photosynthesis.
C R is a green coloured, agranular substance where dark reaction takes place during photosynthesis.
D R is the site of dark reaction whereas Q is the site of light reaction during photosynthesis.


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Subject :NSO    Class : Class 8

A floor has a maximum loading capacity of 5 kN m-2. Which of the following is allowed on this floor? (Take g = 10 N kg-1)

AAn elephant weighing 50 kN stands on 4 legs with each foot covering 4000 cm2 of the floor.
BA 50 kg lady wears a pair of high heel shoes, each shoe has a contact area of 9 cm2 with the floor.
CA 100 kg washing machine stands on a surface area of 6500 cm2.
DA designer's table weighing 1000 N stands on 3 legs, each leg has a contact area of 0.1 cm2 with the floor.


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Subject :NSO    Class : Class 3

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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

Ans 1:

Class : Class 4
B

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Subject :NSO    Class : Class 6

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