CBSE > Class 11 > Physics | CBSE Board | Homework Help

Hey , make sure that your each and every derivation of the chapters must be clear and there should not be a tiny doubt for any future enquiry about anything. Dont wait for tuitor and do practice by your own and will overcome this problem within a few weeks. Hope it will helpful.?

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Shubham Kumar 6 years, 2 months ago

Stay focused and complete one topic in a day

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If aparticle projected with velocity 25m/s subtended angle 53 degree and horizontal range is 50m what is the time

Posted by Nikita Kannaujia 6 years, 2 months ago

CBSE > Class 11 > Physics

1 answers

Yasashwini Awasthi 6 years, 2 months ago

By using this formula you can find the time... T= 2u sin theetha/g. sin53°= 0.7986

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Obtain relations to show how the value of 'g' changes with (1)altiude (2)depth

Posted by Krishna Kumar 6 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Define Viscosity and its unit

Posted by Baadshah Dhariwal 6 years, 2 months ago

CBSE > Class 11 > Physics

1 answers

Bhawna Sangwan 6 years, 2 months ago

Internal resistance in flow of a liquid and its unit is Ns/m2

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Give some questions of relative error with solution

Posted by Arti Singh 6 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Define inelastic collision and derivational also

Posted by Himesh Rajwade 6 years, 2 months ago

CBSE > Class 11 > Physics

1 answers

Akhil Khare 6 years, 2 months ago

THE COLLISION IN WHICH THERE IS A LOSS OF KINETIC ENERGY OF THE BODIES AFTER COLLISION IS KNOWN AS INELASTIC COLLISION.

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Posted by Himesh Rajwade 5 years, 8 months ago

CBSE > Class 11 > Physics

3 answers

Shubham Kumar 6 years, 2 months ago

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Tanu ?✌️ Upadhyay Beautiful ? 6 years, 2 months ago

?????????

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Tanu ?✌️ Upadhyay Beautiful ? 6 years, 2 months ago

What D

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1. What is integration and calculus? 2. How to use in physics and solve it?

Posted by Jones Arputhan 6 years, 2 months ago

CBSE > Class 11 > Physics

1 answers

Shubham Kumar 6 years, 2 months ago

Integration means to join many small parts sry but i can not explain it here ..... U will get many videos on YouTube

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Define the forces

Posted by Nachtar111 Singh 6 years, 2 months ago

CBSE > Class 11 > Physics

3 answers

Tanu ?✌️ Upadhyay Beautiful ? 6 years, 2 months ago

How dambo u r

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Arti Singh 6 years, 2 months ago

Rate of change in momentum is called force.

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Yogita Ingle 6 years, 2 months ago

In Physics, force is defined as: The push or pull on an object with mass that causes it to change its velocity. The Force can be measured using a spring balance. The SI unit of force is Newton(N).

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Any one here who doing foundation for NEET or IIT ????

Posted by Affu 😊 6 years, 2 months ago

CBSE > Class 11 > Physics

2 answers

Vishvesh Dudhagra 6 years, 2 months ago

Yes's

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Shubham Kumar 6 years, 2 months ago

Yes me

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व्हाट इज the ratio of the speed of the body to the speed of sound

Posted by Akhil Patel 6 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

State hook's law

Posted by Rohith Lokesh 6 years, 2 months ago

CBSE > Class 11 > Physics

4 answers

Bhawna Sangwan 6 years, 2 months ago

Stress is directly propotional to strain

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Shubhnesh Yadav Yadav 6 years, 2 months ago

Simply where stress is directly proportional to strain

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Tannu Sharma 6 years, 2 months ago

It states that within the elastic limit, stress developed is directly proportional to the strain produced in a body

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Yogita Ingle 6 years, 2 months ago

Robert Hooke was the scientist who gave Hooke’s law.
Hooke’s law states that within the elastic limit, stress developed is directly proportional to the strain produced in a body.
Consider a scenario where we apply external force to the body. As a result stress develops in the body due to this stress there will be a strain produced in the body which implies that there will be some deformation in the body.
Because of stress, strain is produced.
According to Hooke’s law, if strain increases the stress will increase and vice-versa.
The Hooke’s law is applicable to all elastic substances.
It does not apply to plastic deformation.
Mathematically :

stress ∝ strain
stress = k × strain
Where k is the proportionality constant and is known as modulus of elasticity.

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Three bodies of equal masses are placed at(0,0) and at (a/2,a√3/2) find out the cordinates of centre of mass (a/2,a√3/6)

Posted by Chandni Bhatia 6 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

A person start from point a and move eastward straight up to 200 m .he then turn left by 60 degree and walk straight for 200m further. Find the magnitude and direction of his displacement

Posted by Kartikey Saradhana 6 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Calculate the velocity of the bob of a simple pendulum at its mean position if it is able to rise to a vertical height of 10cm. Take g = 9.8

Posted by Sakshi Vats 6 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Please tell me the observation table of experiment to measure the diameter of a small spherical body using vernier calipers

Posted by Deepak Dhewa 6 years, 2 months ago

CBSE > Class 11 > Physics

1 answers

Mehak Gautam 6 years, 2 months ago

You can find a great video on yotube related to that topic which you are saying and the concert will be more clear by drawing the observation table with tuitor instructions as well.

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Can i know the question paper criterion of physics

Posted by Anushika Payasi 6 years, 2 months ago

CBSE > Class 11 > Physics

2 answers

Aditya Narayan Singh 6 years, 2 months ago

Sahi hai

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Mehak Gautam 6 years, 2 months ago

By any of your reference book or by discussing with your teacher as they will make you better understand.

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Due to capillarity action,a liquid will rise in a tube, if the angle of contact is

Posted by Rohan Kumar 6 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Find the dimensions of A and B from the following expression -- F=A + t2÷B3 Where f is force and t is time

Posted by Rohan Singh 6 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Torque is a example of vector quantity (yes or no

Posted by Rohan Patel 6 years, 2 months ago

CBSE > Class 11 > Physics

5 answers

Archana Yadav 16 6 years, 2 months ago

Yes

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Khushi Badkul 6 years, 2 months ago

Yes

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Md Fardeen 6 years, 2 months ago

Yes torque is a vector quantity.

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Gaurav Seth 6 years, 2 months ago

Yes, Torque is a example of vector quantity.

Explanation:

Torque is calculated by multiplying force and distance. It is a vector quantity, meaning it has both a direction and a magnitude. Either the angular velocity for the moment of inertia of an object is changing, or both.

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Shaswatika Samal 6 years, 2 months ago

Yes

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A block of mass 25 kg is lying on a rough horizontal surface . When a force of 122.5 newton is applied horizontal surface, the block just begins to move . Find the coefficient of friction between the surface and the block

Posted by Anajli Gariya 6 years, 2 months ago

CBSE > Class 11 > Physics

3 answers

Anajli Gariya 6 years, 2 months ago

I thi

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Rohan Singh 6 years, 2 months ago

M=25kg R=m×g =250N Fsmsx=122.5N so, Fsmax=u×R 122.5N=u×250N =. u=49 Cofficient of friction=49

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Beast Boy 6 years, 2 months ago

Hi there..? We know that Frictional force= coefficient of friction(¶) × Resultant force(R) F=¶×R F/R=¶ Now, resltuant force =mass × g R=25×10 R=250 And it is given that F=122.5 N Puting these values in the equation formed 122.5/250=¶ We get 0.5 So this is the ans If u liked it plz follow me on Instagram lesner321 And happy diwali in advance...???✨?

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A large fluid star ossilates in shape under the abundance of its own gravitational field.Using dimensional analysis find the expression for period of oscillation (T) in terms of radius of star (R),mean density of fluid (p) and gravitational constant (G)

Posted by Mehul Sharma 6 years, 2 months ago

CBSE > Class 11 > Physics

1 answers

Sia ? 6 years, 2 months ago

Let the period of oscillation T of a large fluid star depends on the radius of star, R, the mean density of fluid, {tex}\rho{/tex} and universal gravitational constant, G as:
T = k R^a {tex}\rho{/tex}^b G^c, where k is a dimensionless constant and a, b, c are their exponents.
Now, equating the dimensions on both the sides, we have,
[M^o L^o T¹] = [L]^a [M L^-3]^b [M^-1 L³ T^-2]^c = M^b-c L^a-3b+3c T^-2c
On comparing powers of M, L and T on both sides, we get,
b - c = 0 ...(i)
a - 3b + 3c = 0 ...(ii)
and - 2c = 1 ...(iii)
On simplifying these equations, we get c = {tex}-\frac{1}{2}{/tex}, b = {tex}-\frac{1}{2}{/tex} and a = 0
Thus, period of oscillation, T = {tex}k \rho^{-\frac{1}{2}} G^{-\frac{1}{2}}{/tex}= {tex}\frac{k}{\sqrt{\rho G}}{/tex}
This is the required expression.

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Sand increase the friction between tyres and snow-covered is decrease true or false

Posted by Rohan Patel 6 years, 2 months ago

CBSE > Class 11 > Physics

2 answers

Satyam Meher 6 years, 2 months ago

Not sure baby.. .

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Satyam Meher 6 years, 2 months ago

False

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Refer me most important reference book for class 11 (cbse) or tell me last 4 month strategy to cover whole syllabus of class 11

Posted by Ankit Raj 6 years, 2 months ago

CBSE > Class 11 > Physics

2 answers

Bhagyashree Dhole 6 years, 2 months ago

Buy oswaal question bank book and go through all the chapters thoroughly and make your own quick notes.. And u can also solve oswaal question papers...

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Prachi Kaushik 6 years, 2 months ago

It's impossible to cover the whole syllabus in four months

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