National Science Olympiad Forum By SOF Olympiad Trainer - Page 669

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
c- 7/6

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Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

Class : Class 1
The correct answer is A.

Ans 2:

Class : Class 8
The answer should be 3 because humans can hear sounds ranging from 20 Hz to 20,000 Hz.

Ans 3:

Class : Class 8
it should be 3

Ans 4:

Class : Class 8
It should be 3 because human ear can hear 20 hz to 20 khz

Ans 5:

Class : Class 8
It should be 3

Ans 6:

Class : Class 10
Yes the answer should be 3 because human's Audible range is fron 20HZ TO 20KHZ.And here10 khz,0.1 khz and 1 khz comes Under this but not 100khzThanks.

Ans 7:

Class : Class 8
Sorry it should be 1

Ans 8:

Class : Class 8
It should be 3 😡😡

Ans 9:

Class : Class 10

Ans 10:

Class : Class 10
It should be 3

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Subject :NSO    Class : Class 2

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
latent heat property

Ans 2:

Class : Class 4
I THINK THE ANSWER SHOULD BE D

Ans 3:

Class : Class 7
the answer is A. If you heat a system then that is obvious that its temperature will rise, how can it remain the same when it is heated up. if SOF Olympiad says the answer is C then it has to give a better solution with more examples so that we can understand it better.

Ans 4:

Class : Class 7
its A!!

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Subject :NSO    Class : Class 2

Ans 1:

Class : Class 6
heart because you said no organ will get blood....

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6

Ans 2:

Class : Class 7
(A)

Ans 3:

Class : Class 4

Ans 4:

Class : Class 4
B is the correct answer

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8
Yes, it will be option no. A.👍

Ans 2:

Class : Class 8

Ans 3:

Class : Class 7
PQ shows the time taken by the ice to melt into water. Here, the temperature is steady – at 0°C. QR shows the time taken by the melted water to heat up and reach boiling point. Here, the temperature rises to boiling point – from 0°C to 100°C. RS shows the time taken by the water to evaporate. Here again, the temperature is steady – at 100°C. Part PQ shows melting of ice.Hence, the right answer is Option A.

Ans 4:

Class : Class 7

Ans 5:

Class : Class 6
thks ribirta

Ans 6:

Class : Class 7

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Subject :NSO    Class : Class 1

Ans 1:

Class : Class 7
It's option A.

Ans 2:

Class : Class 1
Its A..Jaya only

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 10
Kindly give me the reasoning of the pattern.

Ans 2:

Class : Class 9
The answer is Option C that is 255 The difference from 3 to 7 is 4. The different from 7 to 15 is 8. The difference from 15 to 31 is 16. The difference from 31 to 63 is 32. The observation if 4 X 2 = 8, 8 X 2 = 16. Like wise, we can find next ones also. Only 5 are given and we have to find the 7th one. So, let is first find the 6th one. 32 X 2 = 64. So, 63 + 64 = 127. The 6th number is 127. Now, we have to find the 7th one. 64 X 2 = 128. 127 + 128 = 255. That is Option C

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