National Science Olympiad Forum By SOF Olympiad Trainer

User Forum

Subject :NSO    Class : Class 5

Post Your Answer

Subject :NSO    Class : Class 7

Fill in the blanks by choosing an appropriate option. When an electric current is passed through a bulb, the __(i)__ gets so heated that it glows. The element of electric heater is made up of __(ii)__. Wires used in electric fuses break when large electric current is passed through them due to __(iii)__ effect of electric current.

--------(i)--------------(ii)---------(iii)
AElement---Tungsten---Heating
BElement---Chromium---Magnetic
CFilament---Tungsten---Magnetic
DFilament---Chromium---Heating


Ans 1:

Class : Class 7
d

Post Your Answer

Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
Pavilion cristatus

Post Your Answer

Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Class : Class 1
The factors of 90 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90. Hence, the correct answer is D.

Post Your Answer

Subject :NSO    Class : Class 4

Ans 1:

Class : Class 6
[A] i and ii

Post Your Answer

Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
Answer is C

Post Your Answer

Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
Total there are 12 squares and each one is into two parts, so total 24. among those unshaded are 15, so the answer is 15/24

Ans 2:

Class : Class 3

Ans 3:

Class : Class 4
15/24

Post Your Answer

Subject :NSO    Class : Class 7

Ans 1: (Master Answer)

Class : Class 1
The correct answer is A.

Post Your Answer

Subject :NSO    Class : Class 7

Ans 1: (Master Answer)

Class : Class 1
The correct answer is B.

Post Your Answer

Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
only 1/2 was given❗❗❗❗❗❗❗😒😒

Ans 2:

Class : Class 7
The length of the shadow increases in afternoon.

Ans 3:

Class : Class 7
answer should be b (iv only) because at noon the shadow is the shortest and at early morning and evening the shadow is the longest

Post Your Answer