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Subject :NSO    Class : Class 9

Ans 1: (Master Answer)

Class : Class 1
Alpha, Beta, Gamma in ascending order.

Alpha particles leaves the nucleus of an unstable atom at a speed of 16,000 kilometres per second, around a tenth the speed of light.
Beta particles travel at a speed of 270,000 kilometres per second, around 98% of speed of light.
Gamma particles travel at the speed of light.

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
Options are wrong. Molecular distance should be less. first fix which column is X and Y.

Ans 2:

Class : Class 4
When a substance is cooled the molecules come closer. But there is no picture showing that the molecules are coming closer there is no correct answer. Also option B and C are the same. Can you please change it?

Ans 3:

Class : Class 5

Ans 4:

Class : Class 4
all options are wrong

Ans 5:

Class : Class 5
ALL ARE WRONG

Ans 6:

Class : Class 5
all options are wrong

Ans 7:

Class : Class 4

Ans 8:

Class : Class 4
is there a correction in the options given?if not please clarify with explanation

Ans 9:

Class : Class 5
B and Co are same. Intermolecular space is not decreasing in any of the situations. It is wrong.

Ans 10:

Class : Class 4
All the answer is wrong. In the NSO book, it is right.

Ans 11:

Class : Class 5
b and c are all the same

Ans 12:

Class : Class 4
all options are wrong

Ans 13:

Class : Class 4
All options are WRONG

Ans 14:

Class : Class 6
Options are wrong. Molecular distance should be less.

Ans 15:

Class : Class 5
The options given are wrong / confusing. Please clarify.

Ans 16:

Class : Class 5
if an object is cooled down the molecule structure changes from loosely packed to tightly packed. therefore none of the options is correct

Ans 17:

Class : Class 4

Ans 18:

Class : Class 5
There is no specific details about which one is X or Y.So by common sense I think that it would be D.But B

Ans 19:

Class : Class 4
ansAll answers oposite

Ans 20:

Class : Class 6
I think al options are wrong . Please tell the correct answer

Ans 21:

Class : Class 4
wrong wrong wrong wrong wrong wrong

Ans 22:

Class : Class 4
it is wrong

Ans 23:

Class : Class 7
please change the question.

Ans 24:

Class : Class 4
all are wrong

Ans 25:

Class : Class 4
Are B, C, D correct.

Ans 26:

Class : Class 6
option d maybe

Ans 27:

Class : Class 5
The question is wrong... and so the answer is also misleading.

Ans 28:

Class : Class 4
Option b, c are the same. Pls give me a proper explanation as to why one option is correct

Ans 29:

Class : Class 4
4wrong question

Ans 30:

Class : Class 4

Ans 31:

Class : Class 5
Please please please please please please please please change the question

Ans 32:

Class : Class 4

Ans 33:

Class : Class 4
how can liquid turn into gas by freezing ? Option A does the same thing so the correct option should be D

Ans 34:

Class : Class 4
wrong options

Ans 35:

Class : Class 4
Please change it. It is correct in NSO book like Harish Divakar said

Ans 36:

Class : Class 5
THE ANSWER IS WRONG.

Ans 37:

Class : Class 6
None of the options are correct according to my doubt.

Ans 38:

Class : Class 5
I think all options are wrong

Ans 39:

Class : Class 4
All options are wrong.

Ans 40:

Class : Class 4
the options are wrong

Ans 41:

Class : Class 5
SHOULD HAVE BEEN SPECIFIC WITH RESPECT TO X AND Y MARKING

Ans 42:

Class : Class 5
PLS. CORRECT

Ans 43:

Class : Class 5
I have by mistake typed it Co sorry it will be C. I have a solution we can report error.

Ans 44:

Class : Class 5
question, answer and solution is wrongall the options are showing the difference on heating

Ans 45:

Class : Class 4
all Q are wrong

Ans 46:

Class : Class 5
I also think that.Questions ,options, colums and answers didn't mentioned.

Ans 47:

Class : Class 6
you are right vaibhav all are wrong

Ans 48:

Class : Class 4
Please explain the answer. I also support Baibhab that the choices given are wrong.

Ans 49:

Class : Class 4
Qtn. agreed but main point is which is column X and which is column is Y??????

Ans 50:

Class : Class 5
Can somebody pls answer this question with explanation

Ans 51:

Class : Class 4
All are wrong. At least number of atoms should be same. So answer should be D

Ans 52:

Class : Class 4
All the options are totally wrong, please change them

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Subject :NSO    Class : Class 4

Achin conducted an experiment to find out the amount of light that can pass through three different materials, a clear plastic sheet, a cardboard and a piece of tracing paper. All the materials have the same thickness. He shone a torch on the three materials and used a light sensor to measure how much light has passed through each of them. Which of the following graphs most likely shows the amount of light that has passed through each material?

A
B
C
D


Ans 1:

Class : Class 4
AAAAAAAAA IS RIGHT

Ans 2:

Class : Class 6

Ans 3:

Class : Class 1
A is correct

Ans 4:

Class : Class 6
I think the ‘A’ is the right answer

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Subject :NSO    Class : Class 2

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 1
answer will be d 4 kilo meters

Ans 2:

Class : Class 7
4 km

Ans 3:

Class : Class 5

Ans 4:

Class : Class 5
4km

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Subject :NSO    Class : Class 9

Ans 1:

Class : Class 10
force=change in momentum/time interval(del t) impulse=change in momentum=force * time interval(del t) SI unit of impulse is newton second or Ns. CGS unit of impulse is dyne second .

Ans 2:

Class : Class 9
SI unit of impluse is Newton

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Subject :NSO    Class : Class 9

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 5
I think option d is correct

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Subject :NSO    Class : Class 6

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