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Pulkit Khanna from DELHI PUBLIC SCHOOL RUBY PARK KOLKATA, Kolkata

Subject :NSO Class : Class 6

Shadow moves on screen when

(i) The source moves parallel to the screen.

(ii) The object moves parallel to the screen.

(iii) The source moves away from the screen.

(iv) Colour of the source of light changes.

(A) (i) & (ii)

(B) (ii) & (iii)

(D) (i), (ii) & (iii).

Ans 1:

ANWESH from DAV DEEPSIKHA, DEEPSIKHA

Class : Class 8

D IS THE ANSWER

Aditya Sai Vemparala from Amanora school, Pune

Class : Class 10

Abhik Roy from Sri Chaitanya Techno School, Bengaluru

Class : Class 9

I think A is the answer

Ritayan Misra from Aditya Birla Public School, Rayagada

Class : Class 7

I think A is the answer,other two options show change of size of shadows not movement.

Pragya Mahajan from BCM Arya Model Sr Sec School, Ludhiana

Class : Class 8

i think d. is the ans.