National Science Olympiad Forum By SOF Olympiad Trainer - Page 577

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Piyush Kumar Pruseth from Sri Aurobindo Integral Education and Research Centre, Rajgangpur

Subject :NSO Class : Class 5

A news flashed on TV that 70 people died in a/an X in Ladakh. The X here can be__________.

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AREEN from BOLTON, HYDERABAD

Class : Class 6

Simple. It's avalanche. An avalanche is a disaster which happens because of rolling and falling of a big snowball downhill.

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Pransh Vashishtha from Chail Public School Chail Chowk, Chail Chowk

Subject :NSO Class : Class 9

A stone is allowed to fall from the top of the tower 100 m high and at the same time another stone is projected vertically upwards from the ground with a velocity of 25 m/s. The two stones will meet above the ground at height of

A 20 m
B 10.2 m
C 11.2 m
D 15.5 m

All options are wrong

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Ans 1:

Praveen Tiwari from St Joseph high school, Maharajganj

Class : Class 9

Maharajang

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Pransh Vashishtha from Chail Public School Chail Chowk, Chail Chowk

Subject :NSO Class : Class 9

The height at which the acceleration due to gravity becomes g/9 (where g is the acceleration due to gravity on the surface of the Earth) in terms of R, the radius of the Earth is

A 2R
B
C R/2
D

Subject :NSO Class : Class 3

what is EVAPORATION

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