National Science Olympiad Forum By SOF Olympiad Trainer - Page 631

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Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Class : Class 1
No, the correct answer is D. When written in decimal, the value of it comes out to be 0.2 and the rest are bigger than it. In fractions, as the denominator gets bigger, the number gets smaller.

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Subject :NSO    Class : Class 7

Ans 1: (Master Answer)

Class : Class 1
The correct answer is B.

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
IT IS AND THE ANSWER IS B

Ans 2:

Class : Class 4
yes even c is the correct ans falguni is saying right

Ans 3:

Class : Class 6
All of them were made of glass. So if P was left as it is without painting wouldn't it be transparent??

Ans 4:

Class : Class 9
Falguni and Tanmay , the C option is correct as R is opaque but the question is through which slide can we see the X mark clearly or partially and we can't see through because as you said R is opaque . Answer D is not correct either because colour affects the transparency of the slide. Answer A is not correct because P is transparent not translucent. That leaves us with Option B which is correct as Q is translucent and the students can see the X partially through it . Hope this explanation helps you clear all your doubts about this question.💜💜💜Oh and by the way completely not related to the question who else is an army ( BTS fans ) ?

Ans 5:

Class : Class 3
why!

Ans 6:

Class : Class 9
Sorry for the typo answer C is incorrect

Ans 7:

Class : Class 9

Ans 8:

Class : Class 9
it is correct r is opaque and we would not be able to see the mark

Ans 9:

Class : Class 7
Even C is correct. In the workbook solution it’s given that slideR is supposed to be opaque

Ans 10:

Class : Class 6
Option A can also be a correct answer because the transparency of the glass is not mentioned. It can be translucent or transparent as well.

Ans 11:

Class : Class 9

Ans 12:

Class : Class 4
slide r is opaque and slide q is translusent

Ans 13:

Class : Class 9
Bcoz when glass Q is painted with light blue we are still able to see the mark , that means its still translucent. When glass R is painted with black, we are not able to see as black is an opaque color. This what the logic meant for. So, option B is correct

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Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Class : Class 1
The correct answer is A.

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
a bru

Ans 2:

Class : Class 7

Ans 3:

Class : Class 6
d

Ans 4: (Master Answer)

Class : Class 1
The correct answer is D.

Ans 5:

Class : Class 9
IT IS D ANURADHA 4 C SVN KUTTUMUKKU

Ans 6:

Class : Class 8
No idea........can someone just tell me how D??????????????????????????????

Ans 7:

Class : Class 8
The correct answer will be D

Ans 8:

Class : Class 9
The correct answer should be A!!!!!

Ans 9:

Class : Class 3
The thumb tacks were a good conductor of heat it was knocked in the wood so it could have easily condected the heat in itself

Ans 10:

Class : Class 6
I can't get the answer of this one.

Ans 11:

Class : Class 5

Ans 12:

Class : Class 6
d

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Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Class : Class 1
The correct answer is A.

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 9
(c)

Ans 2:

Class : Class 8

Ans 3:

Class : Class 8
the first option in coloumn two isnt even a graph!

Ans 4:

Class : Class 8
The correct answer is Option(C).

Ans 5:

Class : Class 9

Ans 6:

Class : Class 10

Ans 7:

Class : Class 7
correct option should be C

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
D because we should LCM as either Indian or Foreign stamps should be placed and max is LCM.

Ans 2:

Class : Class 6
Find the HCF / GCD of 378 and 588, you will get the answer.

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8
graphite

Ans 2:

Class : Class 8
yes.....graphite is a electrical conductor and a heat insulator

Ans 3:

Class : Class 6
None of the above. No object can be conductor and insulator at the same time except for some elements like germanium and silicon.

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