National Science Olympiad Forum By SOF Olympiad Trainer - Page 607

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 9
YesvI think the same

Ans 2:

Class : Class 8
In my opinion, the answer should be option (A) instead of option (B). On the Richter scale (which is a non-linear scale), the power of an earthquake increases by 10 with every consequent number. Thus, an earthquake of 2 on the Richter scale is 10 times more powerful than an earthquake of 1 on the Richter scale. Thus, an earthquake of 8 on the Richter scale is more powerful than an earthquake of 6 on the Richter scale, by a factor of 10⁸⁻⁶, or 10². Thus, an earthquake of 8 on the Richter scale is 100 times more powerful than an earthquake of 6 on the Richter scale.

Ans 3:

Class : Class 8
YOu are absolutely right dude

Ans 4:

Class : Class 10
yeah

Ans 5:

Class : Class 9
Hi friend. The ans is (A) 100 because on richter scale the magnitude is increased ten times every number. for example 2 is 10 times 1 on richter scale.

Ans 6:

Class : Class 9
Yeah bro

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 9

Ans 2:

Class : Class 6
C for sure

Ans 3:

Class : Class 7
C

Ans 4:

Class : Class 9

Ans 5:

Class : Class 9

Ans 6: (Master Answer)

Class : Class 1
The correct answer is C.

Ans 7:

Class : Class 9

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 6
THE ANSWER IS C BECAUSE BY INCREASING THE TILT OF THE TRAY, THE WATER FLOWS FAST AND ERODES THE SOIL MORE

Ans 2:

Class : Class 6

Ans 3:

Class : Class 5
Augustine is correct.

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 9

Ans 2:

Class : Class 9

Ans 3:

Class : Class 9
IT IS D!

Ans 4:

Class : Class 7

Ans 5:

Class : Class 6

Ans 6:

Class : Class 3

Ans 7:

Class : Class 9
d is correct

Ans 8:

Class : Class 9
no it can not be option d as temperature has no effect on frequency. Wheather temperature increases or decreases frequency remains unchanged. So, the answer could be either time period or frequency.

Ans 9:

Class : Class 8
d

Ans 10:

Class : Class 8
D

Ans 11:

Class : Class 8

Ans 12:

Class : Class 8
The answer is D. If wavelength changes , then frequency and time period will also change. Wavelength is inversely propotional to frequency and directly propotional to time period.

Ans 13:

Class : Class 8
It should be answer D. If wavelength changes, frequency and time period will also change.

Ans 14:

Class : Class 4

Ans 15: (Master Answer)

Class : Class 1
The correct answer is C.

Ans 16:

Class : Class 8
The correct answer should be D. Because temperature of air increases, density decreases and so, frequency of sound increases. But, according to me, it may or may not affect the wavelength, but the time period will definitely decrease. The options are a bit confusing.....

Ans 17:

Class : Class 4

Ans 18:

Class : Class 10
yeah, the answer is d

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
I will go with D

Ans 2:

Class : Class 7
i wiil go with c

Ans 3:

Class : Class 7
Answer is C

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
A is the right option

Ans 2:

Class : Class 8
It's (A) as evaporation causes cooling.

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Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Class : Class 1
The correct answer is B.

Ans 2:

Class : Class 4
ADMIN

Ans 3:

Class : Class 6

Ans 4:

Class : Class 4

Ans 5:

Class : Class 5
B😰

Ans 6:

Class : Class 8
correct ans is b

Ans 7:

Class : Class 4

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 10

Ans 2:

Class : Class 6
The answer is (c)

Ans 3:

Class : Class 9
c

Ans 4:

Class : Class 6

Ans 5:

Class : Class 6
c

Ans 6:

Class : Class 5
http://www.sofolympiadtrainer.com/user/endTest/resultReport

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3

Ans 2:

Class : Class 7
w4aestdryuvghibj

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 8
No, Answer D is not correct. They are talking about red, blue, and green lights not red, blue, and green pigments in a leaf. Red and blue lights are efficient in photosynthesizing and the green pigment is also efficient in photosynthesizing. Here, they are talking about lights, not pigments in a leaf.

Ans 2:

Class : Class 7
Answer D look like correct too

Ans 3: (Master Answer)

Class : Class 1
The correct answer is C.

Ans 4:

Class : Class 9
Answer C is correct because Red and Blue light are absorbed and used for Photosynthesis . But in D it is written Green light is reflected ( correct ) but is used for Photosynthesis ( incorrect )

Ans 5:

Class : Class 7
Got it as green color reflected thus will not be used for photosynthesis

Ans 6:

Class : Class 1
How???????

Ans 7:

Class : Class 7
What????!!How?????!!!Please answer!!

Ans 8:

Class : Class 5
howwwwwwwww pls 4my sanity tell me

Ans 9:

Class : Class 8
Pls explainI agree with shreyansh2010

Ans 10:

Class : Class 8

Ans 11:

Class : Class 10
But what is the explanation?

Ans 12:

Class : Class 1
Thanks for the answer. ......

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