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If the velocity of a body increases three times . How does it's kinetic energy change?

Posted by Priyanka P 7 years, 10 months ago

CBSE > Class 11 > Physics

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Sanaya Shrestha 7 years, 10 months ago

KE will 9 times

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Relation between alpha beta and gama

Posted by Shreya Kumari 7 years, 10 months ago

CBSE > Class 11 > Physics

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Main topics for getting passing mark

Posted by Abins K Joseph 7 years, 10 months ago

CBSE > Class 11 > Physics

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Akshat Sharma 7 years, 10 months ago

Cannot engine,heat engine, refrigerator, mean free path, hydraulic function, bernoulis theorem, newtons law cooling and doosre important topics

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What is mean by surface tension

Posted by Ankesh Kumar 7 years, 10 months ago

CBSE > Class 11 > Physics

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What is the derivations for uniform circular motion

Posted by Anjali Singh 7 years, 10 months ago

CBSE > Class 11 > Physics

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Derivation of motion of car on banked road

Posted by Likha Tama 7 years, 10 months ago

CBSE > Class 11 > Physics

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Show the graph of displ.,vel.,accl., of a body during free fall?

Posted by Paritosh Sinha 7 years, 10 months ago

CBSE > Class 11 > Physics

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What is precision?

Posted by Myra Sharma 7 years, 10 months ago

CBSE > Class 11 > Physics

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What is dopler effect

Posted by Shreyansh Srivastava 7 years, 10 months ago

CBSE > Class 11 > Physics

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Myra Sharma 7 years, 10 months ago

The Doppler effect (or the Doppler shift) is the change in frequency or wavelength of a wave for an observer who is moving relative to the wave source.[1] It is named after the Austrian physicist Christian Doppler, who described the phenomenon in 1842.

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Difference between cross and dot product

Posted by Arnav Singh 4 years, 6 months ago

CBSE > Class 11 > Physics

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Sia ? 4 years, 6 months ago

Parameter Of Comparison	Dot Product	Cross Product
General Definition	A dot product is the product of the magnitude of the vectors and the cos of the angle between them.	A cross product is the product of the magnitude of the vectors and the sine of the angle that they subtend on each other.
Mathematical Relation	The dot product of two vectors A and B is represented as : Α.Β = ΑΒ cos θ	The cross product of two vectors A and B is represented as : Α × Β = ΑΒ sin θ
Resultant	The resultant of the dot product of the vectors is a scalar quantity.	The resultant of the cross product of the vectors is a vector quantity.
Orthogonality of Vectors	The dot product is zero when the vectors are orthogonal ( θ = 90°).	The cross product is maximum when the vectors are orthogonal ( θ = 90°).
Commutativity	The dot product of two vectors follows the commutative law : A. B = B. A	The cross product of two vectors does not follow the commutative law : A × B ≠ B × A

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What is the purpose of human eye?

Posted by Aparna Kumari 7 years, 10 months ago

CBSE > Class 11 > Physics

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Myra Sharma 7 years, 10 months ago

The human eye is an organ which reacts to light and pressure. As a sense organ, the mammalian eye allows vision. ... Rod and cone cells in the retina allow conscious light perception and vision including color differentiation and the perception of depth.

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Dalton law of partial pressure

Posted by Thiruvalluvan Thiru 7 years, 10 months ago

CBSE > Class 11 > Physics