National Science Olympiad Forum By SOF Olympiad Trainer - Page 720

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 8
Why the answer cannot be A and B both i.e. Option D

Ans 2:

Class : Class 9
sorry convex mirror

Ans 3:

Class : Class 5

Ans 4:

Class : Class 7

Ans 5:

Class : Class 8
I think it is the option D because when an object is very close to a concave mirror that is its focal length, the image formed is magnified , laterally inverted and virtual .

Ans 6:

Class : Class 9
I think it should be all of the above, even concave mirror shows lateral inversion.

Ans 7:

Class : Class 10
correct ans is option D because when an object is very close to a concave mirror that is on its focal length, the image formed is magnified , virtual, and laterally inverted.

Ans 8: (Master Answer)

Class : Class 1
The correct answer is A.

Ans 9:

Class : Class 8

Ans 10:

Class : Class 8

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Subject :NSO    Class : Class 1

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Subject :NSO    Class : Class 1

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Subject :NSO    Class : Class 10

Ans 1:

Class : Class 10
It is because diamonds contain no free electron and hence do not conduct electricity.

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 1

Ans 1: (Master Answer)

Class : Class 1
The correct answer is C.

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
6

Ans 2:

Class : Class 4

Ans 3:

Class : Class 9
C

Ans 4:

Class : Class 7
stupid questionwhat logic 🤬🤬👿👿😡😡.

Ans 5:

Class : Class 3
Explanation - Combinations with B1 - B1G1G2, B1G1G3, B1G1G4, B1G2G3, B1G2G4, B1G3G4 Combinations with B2 - B2G1G2, B2G1G3, B2G1G4, B2G2G3, B2G2G4, B2G3G4 Hence total of 12 combinations. Answer is B (B stands for Boy and G stands for Girl)

Ans 6:

Class : Class 5
Stupid question 😡😡😡

Ans 7:

Class : Class 5

Ans 8:

Class : Class 9
what type o

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5

Ans 2:

Class : Class 6
the answer's Q an R.

Ans 3:

Class : Class 9

Ans 4:

Class : Class 8
Please we need an explanation this q is hard.

Ans 5:

Class : Class 5
Omg why didn’t they give the freaking explanation?!

Ans 6:

Class : Class 9
This question is very complicated please do help us understand by giving the explanation 😊

Ans 7:

Class : Class 9
please give explanation

Ans 8:

Class : Class 4

Ans 9:

Class : Class 9

Ans 10:

Class : Class 8
plese exlination

Ans 11:

Class : Class 5
 A-P

Ans 12:

Class : Class 6

Ans 13:

Class : Class 7

Ans 14:

Class : Class 6
Sof kindly explain us how is the answer D it should be A

Ans 15:

Class : Class 5

Ans 16:

Class : Class 8
pls give the explaination

Ans 17:

Class : Class 5
A-P

Ans 18:

Class : Class 9
How the options are wrong

Ans 19:

Class : Class 8
A]P only

Ans 20:

Class : Class 8
please explain ow is the answer given is correct

Ans 21:

Class : Class 1
Explanation please.

Ans 22:

Class : Class 7

Ans 23:

Class : Class 7
D is the answer because fig. p and fig. q pulley systems contain only one pulley wheres fig. r pulley system as two pulleys which makes the work easier

Ans 24:

Class : Class 7

Ans 25:

Class : Class 5
Class :Please give explanation....its really hard....I didn't get how is D the answer

Ans 26:

Class : Class 9
My answer is correct but I need explanation. Can SOF and Admin explain the answer.Thank You

Ans 27:

Class : Class 6
please explain P diagram

Ans 28:

Class : Class 5
Actually r only has the property given

Ans 29:

Class : Class 7

Ans 30:

Class : Class 7

Ans 31:

Class : Class 7

Ans 32:

Class : Class 5
I mean like seriously it is so hard....

Ans 33:

Class : Class 6
Sof fools have not even given the solution. LOL!

Ans 34:

Class : Class 7

Ans 35:

Class : Class 5

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 1
Oh!

Ans 2:

Class : Class 1

Ans 3:

Class : Class 9
option c is not looking like a idly. it is looking like a laddoo

Ans 4:

Class : Class 1
i thought it was laddoo so i chose cheese (a) but it was c idli and they should change the picture to a coloured picture or we will get confused

Ans 5:

Class : Class 5
c and idili

Ans 6:

Class : Class 2
Yes it is looking like a laddoo they should put a colored picture not a B

Ans 7: (Master Answer)

Class : Class 1
Option A - Cheese is rich in Protein Option B - Eggs are rich in Protein and Carbohydrates Option C - Idlis are made up of rice/semolina flour (coarse, fibre rich particles of wheat left behind after the finer particles of flour have passed through the refining process), urad dal, etc. It is rich in carbohydrates. Protein and roughage are also present in it. Option D - Butter is rich in Fats

Ans 8:

Class : Class 8
Yes

Ans 9:

Class : Class 8
they should change the picture if they can"t they should show a colored picture.

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