National Science Olympiad Forum By SOF Olympiad Trainer - Page 542

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 4

Ans 2:

Class : Class 6

Ans 3:

Class : Class 6
A is right and it is RIGHT

Ans 4:

Class : Class 6
aaaaa is the ans

Ans 5:

Class : Class 6
It is option A

Ans 6:

Class : Class 7
it is d

Ans 7:

Class : Class 4
how its d i got it a

Ans 8:

Class : Class 7
Y is a jaw bone joint just like the elbow joint.

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8

Ans 2:

Class : Class 6
Both A

Ans 3:

Class : Class 8

Ans 4:

Class : Class 4
the answer can be both a and c. scientifically both are correct

Ans 5:

Class : Class 6
both a

Ans 6:

Class : Class 6
the ans can be both A and C

Ans 7:

Class : Class 7

Ans 8:

Class : Class 5
Both a and c are correct

Ans 9:

Class : Class 8
Ya Nishka you are right. C is the correct answer.

Ans 10:

Class : Class 6
aaaaaaaaaaaaaa

Ans 11:

Class : Class 8
not only a is true also b is true

Ans 12:

Class : Class 6
aaaaaaaaaaaaaaaaaaaaaaaaa

Ans 13:

Class : Class 8

Ans 14:

Class : Class 6
3 trhing are truea c d

Ans 15:

Class : Class 8

Ans 16:

Class : Class 3
In 'A', it only gives half the reason for why the image is inverted in a pin hole camera. I think that 'C' is correct as it is a correct statement.

Ans 17:

Class : Class 8
sorry I meant c

Ans 18:

Class : Class 8

Ans 19:

Class : Class 9
Answer can be A or C

Ans 20:

Class : Class 8
No, only A is true

Ans 21:

Class : Class 7

Ans 22:

Class : Class 7
answer should be a or c

Ans 23:

Class : Class 8

Ans 24:

Class : Class 8

Ans 25:

Class : Class 8
a only noobs

Ans 26:

Class : Class 6
as written in lakhmir singh the answer should be (C)

Ans 27:

Class : Class 9
a and c is correct

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
c

Ans 2:

Class : Class 9
Note,Tone 2 is the answer so, option is D

Ans 3:

Class : Class 6

Ans 4:

Class : Class 8

Ans 5:

Class : Class 8

Ans 6:

Class : Class 6

Ans 7:

Class : Class 7
note and tone can be made

Ans 8:

Class : Class 8

Ans 9:

Class : Class 8
Ten on no to are words that can be formed

Ans 10:

Class : Class 8
note

Ans 11:

Class : Class 2

Ans 12:

Class : Class 9
Thanks Harshit

Ans 13:

Class : Class 6
the words are Note,Tone,To,On,No and Ten 6 is the answer so, option is D

Ans 14:

Class : Class 6

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8
Pellagra

Ans 2: (Master Answer)

Class : Class 1
scurvy, a deficiency of vitamin C. Beriberi is a disease caused by a vitamin B-1 deficiency Pellagra is a disease caused by low levels of niacin, also known as vitamin B-3 Rickets is caused by deficiency of Vitamin D Hence no answer is correct

Ans 3:

Class : Class 7
Hey there! None of the options are correct.

Ans 4: (Master Answer)

Class : Class 1
scurvy, a deficiency of vitamin C. Beriberi is a disease caused by a vitamin B-1 deficiency Pellagra is a disease caused by low levels of niacin, also known as vitamin B-3 Rickets is caused by deficiency of Vitamin D Hence no answer is correct

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7

Ans 2:

Class : Class 3

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 10
Dude it should be 35 degree as angle of incidence = angle of reflection the solution is wrong

Ans 2:

Class : Class 8
Law of reflection:angle of incidence= angle of reflection This formula is only used when the angles are measured from the normal to the ray and not from the ray to the mirror. In this diagram we see that the angle is measured from the ray to the mirrot .The normal measures 90° so we need to subtract 90° from 35° to get the angle of incidence which is 55° . We now that angle of incidence= Angle of reflection hence the answer will be 55°

Ans 3:

Class : Class 6

Ans 4:

Class : Class 9
It is stupid answer explanation

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Subject :NSO    Class : Class 7

Consider the following statements and select the correct option which correctly identifies true (T) and false (F).
(i) Concave mirror is used for side view mirror in vehicles.
(ii) The image formed by a plane mirror is upright.
(iii) When a person moves closer to a plane mirror, the size of his image in the mirror remains the same.
(iv) In the case of reflection, virtual image of the object is formed on the same side as the object.

(i) (ii) (iii) (iv)
A T F F T
B F T T F
C F T F T
D T F T F


Ans 1:

Class : Class 9

Ans 2:

Class : Class 4

Ans 3:

Class : Class 5

Ans 4:

Class : Class 9
if a person moves closer to the plane miror , ,would not size of the imagge become larger ,??????? WHy the statement saying that if a eprson moves near to a plane mirror , the image of the person would emain same in size??? SOF , please correct the answer of the question.. I am finding too many wrong quesions nowadays

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 10
The answer is frosted glass because we can see through it faintly.

Ans 2:

Class : Class 7
Answer is option b) Frosted Glass.

Ans 3:

Class : Class 10
The answer is frosted glass because we can see through it faintly.

Ans 4:

Class : Class 8
Oiled paper

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Subject :NSO    Class : Class 6

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