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RRB GROUP D LEVEL -1 POSTS EXPECTED GENERAL SCIENCE QUESTIONS (PHYSICS) PART - 1 of 3

CHEMISTRY EXPECTED QUESTIONS WILL RELEASES SOON

Rain drops acquire spherical shape due to - Surface tension

It is more difficult to walk on ice than on a concrete road because - there is very little friction between the ice and feet pressing it

Skating on ice is possible because - the pressure on the ice due to skate melts the ice by lowering its melting point forming a thin film of water

Formation of shadows can be explained by - rectilinear propagation of light

Energy posses by a body in motion is called - Kinetic Energy

If lift is going up with acceleration, the apparent weight of a body is - more than the true weight

Sudden fall in barometer is indication of - Storm

What is Hooke’s Law - Stress is directly proportional to strain.

Lognitudinal waves and Transverse waves are types of - Mechanical waves

What are audible sound waves - Having frequency between 20 Hz to 20000 Hz

Stars appears to move from east to west because - the earth rotates from west to east

Metals are good conductors of electricity because - they contain free electrons

Rectifiers are used to convert - Alternating current to Direct current

Magnetism at the centre of a bar magnet is - zero

Elecronegativity is the measure of - Non-metallic character