Subject :NSO Class : Class 4
Subject :NSO Class : Class 4
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Subject :NSO Class : Class 8
Ans 6:
Class : Class 7
I too am confused as current will also flow through both the bulbs when circuit is closed. It will pass through the switch first and hence lighting up bulb Y.
Ans 7:
Class : Class 7
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb is correct as current will flow though X but I do feel that current will prefer less resistant path so D can also be correct
Ans 11:
Class : Class 3
Option D is correct because current prefers the path that offers less resistance. The bulb provides resistance whereas the switch when closed does not. Hence correct answer is D
Ans 13:
Class : Class 8
It must be B.The current finds a more direct path to Y, Making it brighter.But the current still reaches X because there is still a path. SOF Says otherwise.
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Subject :NSO Class : Class 5
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Subject :NSO Class : Class 4
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Subject :NSO Class : Class 4
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Subject :NSO Class : Class 4
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Subject :NSO Class : Class 4
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Subject :NSO Class : Class 6
Ans 4:
Class : Class 7
The answer D is correct. Magnetic field moves from North to South, and if you follow the direction of the compasses, you will see that this theory is true.
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Subject :NSO Class : Class 6
Ans 5:
Class : Class 8
I think it should be C because otherwise the zero end can shift slightly (in our viewpoint) and measurement will be wrong. So both statements a and b are correct and the answer is C.
Ans 9:
Ans 10:
Class : Class 3
No guys. Human eye can't focus simultaneously on two points. To avoid parallax error , eye should be on the point of measurement to be taken.Hence given answer is correct in my view. You may comment.
Ans 13:
Class : Class 7
No as it causes a parallax error.
It should be option A.
If you don't believe me then try it yourself with a scale and measuring a line segment from different eye positions.
You will see that, the measurement varies slightly every time. That's why option A is correct.