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Assertion : The light year and wavelengt...

Assertion : The light year and wavelength consist of dimensions of length.
Reason : Both light year and wavelength represent time.

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Dimensions of light year is

Write the dimensions of 'light year'.

Assertion : 'Light year' and 'Wavelength' both measure distance. Reason : Both have dimensions of time.

Assertion : 'Light year' and 'Wavelength' both measure distance. Reason : Both have dimensions of time.

Assertion : When certain wavelength of light fall on metal surface it ejects electron. Reason : Light was wave nature.

Assertion : When certain wavelength of light fall on metal surface it ejects electron. Reason : Light was wave nature.

Is light year a unit of time ?