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When a truck moves very fast, it created a low pressure area, so dusts are being pulled along in the low pressure area. If we stand very close to railway track in the platform, when a fast train passes us, we get pulled towards the track because of the low pressure area generated by the sheer speed of the train. Enjoy ?

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Dimension of k/m k is force costant

Posted by Ddh Nd 3 years, 7 months ago

CBSE > Class 11 > Physics

1 answers

Harmanpreet Kaur 3 years, 7 months ago

Dimension of K=N/m. k/m=Nm-2

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Describe Kepler's law of planetary motion

Posted by ?Shreya.Kamalakar✔️ Naik 3 years, 7 months ago

CBSE > Class 11 > Physics

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An electron and a proton are detected in a cosmic ray experiment, the first with kinetic energy 10KeV, and the second with 100KeV. Which is faster, the electron or the proton? Obtain the ratio of their speeds (electron mass =9.11∗10−31kg, Proton mass =1.67∗10−27kg, 1eV=1.60∗10−19J).

Posted by Darshan Patil 3 years, 7 months ago

CBSE > Class 11 > Physics

1 answers

Anjan Karthi 3 years, 7 months ago

KE = 1/2 mv^2. V = √2KE/m.

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Any one can explain log

Posted by Kunal Kishore 3 years, 7 months ago

CBSE > Class 11 > Physics

1 answers

Karan Frost 3 years, 7 months ago

Class 11 physics practical observation of the relationship between frequency and length of a given wire under constant tension using sonometer

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What is meant by elasticity

Posted by Sadiq Srk Sadiq Srk 3 years, 7 months ago

CBSE > Class 11 > Physics

3 answers

Deepak Kumar Meena 3 years, 5 months ago

Elasticity is a property of material to gain it's its original size after deformation .

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Arti Verma 3 years, 7 months ago

The property of virtue by which a body can regain its original shape and size after the removal of deforming force

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Gurleen Kaur 3 years, 7 months ago

Elasticity is the property of regaining the original configuration after the removal of deforming force.

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E=mc2

Posted by Shubham Prjapati 3 years, 7 months ago

CBSE > Class 11 > Physics

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A block whose mass is 1kg is fastened to a spring. The Spring constant of 50Nm

Posted by Vishaliya Feena 3 years, 7 months ago

CBSE > Class 11 > Physics

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What is the Bernoulli theorem

Posted by Ankit Guha 3 years, 7 months ago

CBSE > Class 11 > Physics

2 answers

Sarthak Dixit 3 years, 6 months ago

I think question is wrong

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Anjan Karthi 3 years, 7 months ago

The total energy within the flow of a non viscous fluid through a tube of non uniform cross section remains a constant at all points inside the tube, even if the points aren't at the same level of height. This is what bernoulli's theorem says. The sum of Pressure energy, Potential energy, kinetic energy = CONSTANT.

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What do you mean by SHM

Posted by Pratibha Kumari 3 years, 7 months ago

CBSE > Class 11 > Physics

2 answers

?Shreya.Kamalakar✔️ Naik 3 years, 7 months ago

Simple Harmonic Motion (SHM)

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Anjan Karthi 3 years, 7 months ago

SHM is the simplest form of oscillatory motion wherein, a body performs to and from motion along a straight line about it's mean position, such that acceleration is directly proportional and opposite in direction to displacement.

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The bob of a pendulum is released from a horizontal position.if the length of the pendulum is 1.5m, what is the speed with which the bob arrives at the lowermost point.given that it dissipated 5%of it initial energy against air resistance?

Posted by Mr Perfect Perfect 3 years, 7 months ago

CBSE > Class 11 > Physics