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Subject :NSO    Class : Class 6

A science teacher labelled three glass slides as P, Q and R. She painted slide Q with light blue colour, slide R with black colour and slide P was left as such.
Then she asked students to put the slide on a white paper having (X) mark on it.
Students will be able to see the mark clearly (or partially)

A In slide P as it is translucent
B In slide Q as it is translucent
C In slide R as it is opaque
D In all the slides as paint does not change the nature of glass.


It's written'Students will be able to see the mark clearly (or partially)'. What should I do the question is not even making up it's mind!

Ans 1:

Class : Class 6
IT IS AND THE ANSWER IS B

Ans 2:

Class : Class 6
why!

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

Ans 5:

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

Ans 6:

Class : Class 6
it is correct r is opaque and we would not be able to see the mark

Ans 7:

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

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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

Nidhi knocked three metal thumbtacks into the middle section of a block of wood and covered this section with a piece of white paper. Then, she brought a lighted candle near this section.
After few seconds, she removed the lighted candle and found burn marks on the paper except on the areas where the thumbtacks were present. Which of the following best explains this observation?


A The paper was a good conductor of heat.
B The thumbtacks and the paper had different temperatures.
C Some parts of the wood absorbed the heat from the candle flame.
D The thumbtacks conducted heat away quickly before the paper could get burnt.


Ans 1:

Class : Class 5
The correct answer should be A!!!!!

Ans 2:

Class : Class 6

Ans 3:

Class : Class 5

Ans 4: (Master Answer)

Class : Class 1
The correct answer is D.

Ans 5:

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 6:

Class : Class 4
No idea........can someone just tell me how D??????????????????????????????

Ans 7:

Class : Class 4
d

Ans 8:

Class : Class 4
d

Ans 9:

Class : Class 5
IT IS D ANURADHA 4 C SVN KUTTUMUKKU

Ans 10:

Class : Class 5
I can't get the answer of this one.

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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 7

Ans 2:

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

Ans 3:

Class : Class 9
(c)

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
d

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Subject :NSO    Class : Class 6

Ans 1:

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

Ans 2:

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

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Subject :NSO    Class : Class 6

Ans 1:

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.

Ans 2:

Class : Class 8
graphite

Ans 3:

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

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 5
its easy

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 5
very easy

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