National Science Olympiad Forum By SOF Olympiad Trainer - Page 545

User Forum

Subject :NSO    Class : Class 5

Ans 1:

Class : Class 7
A--- Sun B---Earth C--- Moon D---Umbra It is right order

Ans 2:

Class : Class 5
which is the correct answer B or C

Ans 3:

Class : Class 5
it is c as it is a lunar eclipse

Post Your Answer

Subject :NSO    Class : Class 5

Ans 1:

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

Ans 2:

Class : Class 7
it is d

Ans 3:

Class : Class 6

Ans 4:

Class : Class 4
how its d i got it a

Ans 5:

Class : Class 6
A is right and it is RIGHT

Ans 6:

Class : Class 4

Ans 7:

Class : Class 6
It is option A

Ans 8:

Class : Class 6
aaaaa is the ans

Post Your Answer

Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8

Ans 2:

Class : Class 7
answer should be a or c

Ans 3:

Class : Class 8
No, only A is true

Ans 4:

Class : Class 10
a and c is correct

Ans 5:

Class : Class 8
sorry I meant c

Ans 6:

Class : Class 9
Answer can be A or C

Ans 7:

Class : Class 6
3 trhing are truea c d

Ans 8:

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

Ans 9:

Class : Class 8

Ans 10:

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

Ans 11:

Class : Class 6
aaaaaaaaaaaaaa

Ans 12:

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

Ans 13:

Class : Class 8

Ans 14:

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 15:

Class : Class 7

Ans 16:

Class : Class 8

Ans 17:

Class : Class 9
Ya Nishka you are right. C is the correct answer.

Ans 18:

Class : Class 8

Ans 19:

Class : Class 8

Ans 20:

Class : Class 5
Both a and c are correct

Ans 21:

Class : Class 7

Ans 22:

Class : Class 8

Ans 23:

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

Ans 24:

Class : Class 7
Both A

Ans 25:

Class : Class 8
a only noobs

Ans 26:

Class : Class 6
aaaaaaaaaaaaaaaaaaaaaaaaa

Ans 27:

Class : Class 6
both a

Post Your Answer

Subject :NSO    Class : Class 5

Ans 1:

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

Ans 2:

Class : Class 6

Ans 3:

Class : Class 8

Ans 4:

Class : Class 7
note and tone can be made

Ans 5:

Class : Class 9
Thanks Harshit

Ans 6:

Class : Class 8

Ans 7:

Class : Class 8
note

Ans 8:

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

Ans 9:

Class : Class 5
c

Ans 10:

Class : Class 6

Ans 11:

Class : Class 8

Ans 12:

Class : Class 2

Ans 13:

Class : Class 6

Ans 14:

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

Post Your Answer

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: (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 4:

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

Post Your Answer

Subject :NSO    Class : Class 6

Post Your Answer

Subject :NSO    Class : Class 7

Ans 1:

Class : Class 3

Ans 2:

Class : Class 7

Post Your Answer

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 9
It is stupid answer explanation

Ans 3:

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 4:

Class : Class 6

Post Your Answer

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 4

Ans 2:

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

Ans 3:

Class : Class 5

Ans 4:

Class : Class 9

Post Your Answer

Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8
Oiled paper

Ans 2:

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

Ans 3:

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

Ans 4:

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

Post Your Answer