National Science Olympiad Forum By SOF Olympiad Trainer - Page 461

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 10

Ans 2:

Class : Class 10

Ans 3:

Class : Class 9
Nothing has been mentioned here, how are we supposed to know whether or not the object is placed at 2F(1) and its image is formed at 2F(2)

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 6

Ans 2:

Class : Class 9
Even i chose option B. Plz explain why would the answer be option D

Ans 3:

Class : Class 8
The answer must be Option B

Ans 4:

Class : Class 8
I too did B but the answer according to sof is DPlease explain

Ans 5:

Class : Class 8
no guys m sorry but their answer is correct as when we wear water goggle we can see clear. its fault our eyes not water.

Ans 6:

Class : Class 5
Option B

Ans 7:

Class : Class 9

Ans 8:

Class : Class 10

Ans 9:

Class : Class 10
b?

Ans 10:

Class : Class 8
Yes the answer needs to b option B

Ans 11:

Class : Class 8
ya its b

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4

Ans 2:

Class : Class 4

Ans 3:

Class : Class 5
answer is d because after new moon cresent moon comes after 2 days

Ans 4:

Class : Class 4
Given figures show the shapes of Moon seen from Earth on different nights:We know that the moon changes from one phase to the next in approximately 3 days. Same is shown by the above figures. Let’s see what all phases the moon has, and put the above given dates to the right phases:That means on January 17, it would be a crescent moon – waxing crescent moon.Hence, the right answer is Option D.

Ans 5:

Class : Class 2
D is the correct answer as the moon takes approximately 3 days change from one phase to another. after new moon cresent moon comes.

Ans 6:

Class : Class 4

Ans 7:

Class : Class 4
D

Ans 8:

Class : Class 4
eweaafdzdxfdxfxfxcxhvcxhfd ttfutdxdxudfxudfxfccfcf

Ans 9:

Class : Class 7
the answer is D. because after the full moon, there comes the glibbous moon

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Subject :NSO    Class : Class 8

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 4
it will be option b light falls on screen in reverse order of VIBGYOR after dispersion

Ans 2:

Class : Class 8
Option b is the correct answer .

Ans 3:

Class : Class 8
answer b is right

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8
The beam is parallel, so the light should not show any change whether it is near or away.

Ans 2:

Class : Class 9
SOF has given c as correct option in its own contentPlz verify and check...

Ans 3:

Class : Class 8
correct answer is c

Ans 4:

Class : Class 8
Answer is A

Ans 5:

Class : Class 8

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
what is silca

Ans 2:

Class : Class 4
b

Ans 3:

Class : Class 3
B

Ans 4:

Class : Class 4
C

Ans 5:

Class : Class 5

Ans 6:

Class : Class 4
d as graphite is used to make pencil lead and bulb is made up of tungsten

Ans 7:

Class : Class 9
B

Ans 8:

Class : Class 3
D

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
B

Ans 2:

Class : Class 3
VERY GOOD !!!!!!""""""""""

Ans 3:

Class : Class 5
B

Ans 4:

Class : Class 9
Ans. B

Ans 5:

Class : Class 3
B

Ans 6:

Class : Class 5
B

Ans 7:

Class : Class 9
A

Ans 8:

Class : Class 3
the correct answer is option d

Ans 9:

Class : Class 4
i am in 3b class

Ans 10:

Class : Class 4
b chalk powder

Ans 11:

Class : Class 3
Class = 3B chalk powder

Ans 12:

Class : Class 6
i am claas 3b RGS

Ans 13:

Class : Class 5
B

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8

Ans 2:

Class : Class 8

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