National Science Olympiad Forum By SOF Olympiad Trainer

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
D

Ans 2:

Class : Class 3
d

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
H

Ans 2:

Class : Class 5
answer option(d)ie H

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
B-green leafy vegetables

Ans 2:

Class : Class 4
B

Ans 3:

Class : Class 4
A . cereals , potatoes

Ans 4:

Class : Class 4
A

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
D

Ans 2:

Class : Class 4
D

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Subject :NSO    Class : Class 7

Three similar light bulbs are connected to a constant voltage d.c supply as shown in the diagram. Each bulb operates at normal brightness and the ammeter (of negligible resistance) registers a steady current.

The filament of one of the bulbs breaks. What happens to the ammeter reading and to the brightness of the remaining bulbs?

Ammeter reading Bulb brightness
A Increase Increase
B Unchanged Unchanged
C Decrease Unchanged
D Decreases Decreases


The correct answer should be D because when current decreases,brightness also decreases

Ans 1:

Class : Class 7

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
non of these as all the options are true

Ans 2:

Class : Class 5
A

Ans 3:

Class : Class 5
non of these as all the options are true

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
answer is B. the main mineral present in this rock is quartz-sandstone sandstone can be found in the grid so it is the answer.

Ans 2:

Class : Class 5
D

Ans 3:

Class : Class 5
the answer will be d as all are present in the grid

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4

Ans 2:

Class : Class 4
A

Ans 3:

Class : Class 4
Ans a because C is for tearing food D for grinding and B are not permanant

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
D none of them

Ans 2:

Class : Class 6
D none of them

Ans 3:

Class : Class 6
Easy

Ans 4:

Class : Class 6
answer is D

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
Drying

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