A wire of copper having length I and area of cross-section A is taken and a current i is flown through it. The power dissipated in the wire is P. If we take an aluminium wire having same dimensions and pass the same current through it, the power dissipated will be

Physics
A wire of copper having length I and area of cross-section A is taken and a current i is flown through it. The power dissipated in the wire is P. If we take an aluminium wire having same dimensions and pass the same current through it, the power dissipated will be

P

> P

< P

2P

P

> P

< P

2P

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Physics
A person standing on a railway platform listens to the whistles of arriving and departing trains. The whistle heard is

Of higher intensity when train arrives

Of higher pitch when train departs

The same in both cases in all respects

Of higher pitch when train arrives

Of higher intensity when train arrives

Of higher pitch when train departs

The same in both cases in all respects

Of higher pitch when train arrives

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Physics
The sharpness of a television image is termed as its

Colour

Resolution

Clarity

Graphics

Colour

Resolution

Clarity

Graphics

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Physics
The combined gas law relates which of the following?

Temperature & Pressure

Volume, Temperature & Pressure

Volume & Pressure

Volume & Temperature

Temperature & Pressure

Volume, Temperature & Pressure

Volume & Pressure

Volume & Temperature

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Physics
Why does the sea appear blue in colour?

Scattering of the sunlight by water molecules

Interference of the sun light from water surface

Refraction of the sun light

Reflection of the sun light from water surface

Scattering of the sunlight by water molecules

Interference of the sun light from water surface

Refraction of the sun light

Reflection of the sun light from water surface

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Physics
A bottle of sodalime is grasped by the neck and swung briskly in a vertical circle, Near which portion of the bottle do the bubbles collect?

Near the neck

In the middle of the bottom

Near the bottom

Bubbles remain distributed uniformly

Near the neck

In the middle of the bottom

Near the bottom

Bubbles remain distributed uniformly

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Physics

Physics A wire of copper having length I and area of cross-section A is taken and a current i is flown through it. The power dissipated in the wire is P. If we take an aluminium wire having same dimensions and pass the same current through it, the power dissipated will be

Physics A person standing on a railway platform listens to the whistles of arriving and departing trains. The whistle heard is

Physics The sharpness of a television image is termed as its

Physics The combined gas law relates which of the following?

Physics Why does the sea appear blue in colour?

Physics A bottle of sodalime is grasped by the neck and swung briskly in a vertical circle, Near which portion of the bottle do the bubbles collect?

Physics
A wire of copper having length I and area of cross-section A is taken and a current i is flown through it. The power dissipated in the wire is P. If we take an aluminium wire having same dimensions and pass the same current through it, the power dissipated will be

Physics
A person standing on a railway platform listens to the whistles of arriving and departing trains. The whistle heard is

Physics
The sharpness of a television image is termed as its

Physics
The combined gas law relates which of the following?

Physics
Why does the sea appear blue in colour?

Physics
A bottle of sodalime is grasped by the neck and swung briskly in a vertical circle, Near which portion of the bottle do the bubbles collect?