"To look at the twinkling of stars is a ...

"To look at the twinkling of stars is a wonderful experience". How its happening ?

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The continuously changing atmosphere (due to varying atmospheric temperature and density) refracts the light from the stars by varying amounts and in different directions from one moment to the next. This leaves a wonderful experience.

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The probability of happening of an event in an experiment is 0.4. The probability of happening of the event atleast once if the experiment is repeated 3 times is

`0.784`

`0.234`

`1.245`

`0.896`

{:(" Column - I "," Column - II " ),(" a) ""The twinkling of a star"," P) ""Dispersion of light"),(" b) ""Formation of rainbow"," Q) ""Atmospheric refraction "),(" c) ""Ability of the eye lens to adjust its focal length"," R) ""Scattering of light"),(" d) ""Blue colour of sky"," S) ""Accommodation"):}

`a - P , b - Q , c - S , d - R`

`a - Q , b - P , c - S , d - R`

`a-P , b - Q , c - R , d - S`

`a - Q , b - P , c - R , d - S `

Probability of happening of an event in an experiment is 0.4 . The probability of happening of the event atleast once , if the experiment is repeated 3 times under similar condition is

`(1)/(16)`

`(13)/(16)`

`(98)/(125)`

`(1)/(4)`

"To look at the twinkling of stars is a wonderful experience". How its happening ?

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The probability of happening of an event in an experiment is 0.4. The probability of happening of the event atleast once if the experiment is repeated 3 times is

Probability of happening of an event in an experiment is 0.4 . The probability of happening of the event atleast once , if the experiment is repeated 3 times under similar condition is

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VGS PUBLICATION-BRILLIANT-HUMAN EYE AND COLOURFUL WORLD-CREATIVE QUESTIONS FOR NEW MODEL EXAMINATION (SECTION-II) APPRECIATION AND AESTHETIC SENSE , VALUES)