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Physics

Physics
Sound waves do not show the phenomenon of

Polarisation
Diffraction
Interference
Refraction

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Physics
Sound becomes hazardous noise pollution at decibels?

Above 120 db
Above 80 db
Above 30 db
Above 50 db

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Physics
In a magnetic field, the direction of motion of a current carrying conductor is given by

Kirchoff's law
Lenz's rule
Flemings left hand rule
Maxwell's right hand rule

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Physics
Which is an example of Phototropism?

Plant bending toward the light
Roots growing into the soil
A venus flytrap capturing a fly
Roots of a plant following water

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Physics
A fresh egg when placed in salt water will

Sink but will not go to the bottom
Burst
Sink and go to the bottom
Float

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Physics
If you look into a mirror and find that the image (your reflection) is smaller than you, then the type of the mirror is:

Plano-concave mirror
Plane mirror
Concave mirror
Convex mirror

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