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What is gravitation?

Posted by Amit Kanawaliya 5 years, 9 months ago

Entrance Exam > JEE main > Physics

1 answers

As Gaming Station 5 years, 1 month ago

The property of a body by which it can attract another body

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What is sound?

Posted by Sachin Kumar 5 years, 10 months ago

Entrance Exam > JEE main > Physics

1 answers

Gaurav Seth 5 years, 10 months ago

Sound is a form of energy which produces a sensation of hearing in our ears.
Sound is produced due to the vibration of objects. Vibration is the rapid to and fro motion of an object.
Vibrating objects are the source of all sounds Irregular, chaotic vibrations produce noise Regular, controlled vibration can produce music All sound is a combination of pure frequencies
A stretched rubber band when plucked vibrates and produces sound.

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Explain procedure to measure the size of oleic acid molecule

Posted by Dillikar Yashwanth D Yashwanth 5 years, 10 months ago

Entrance Exam > JEE main > Physics

2 answers

As Gaming Station 5 years, 1 month ago

1. 1ml oelic acid + 19ml alcohol = 20 ml solution 2. 1ml solution + 19 ml alcohol = 20 ml final solution Then , take water and drop by drop of final solution in water Then , take graph paper and put on water Then , we have the radii of oelic acid

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Anuj Singh 5 years, 8 months ago

Refer ncert physics book chapter w

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What is the fundamental physical quantity

Posted by Nishikant Solanke 5 years, 11 months ago

Entrance Exam > JEE main > Physics

1 answers

As Gaming Station 5 years, 1 month ago

1. Distance, 2. time, 3. mass, 4. Temperature 5. Amount of substance 6. Current 7. Luminous intensity

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Kinetic energy

Posted by Azhar Uddin 5 years, 11 months ago

Entrance Exam > JEE main > Physics

2 answers

Alok Singh 4 years, 10 months ago

½ mv² Energy possesses by an moving body

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Harsh Yadav 5 years, 10 months ago

1/2 m(v×v)

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Ebglish

Posted by Lalhlimpuia Hlima 5 years, 11 months ago

Entrance Exam > JEE main > Physics

0 answers

ANSWER

Derive eq. Of motion with intregation method

Posted by Arjun Rajput 5 years, 11 months ago

Entrance Exam > JEE main > Physics

0 answers

ANSWER

law of inertia with example

Posted by Veer Veer 5 years, 11 months ago

Entrance Exam > JEE main > Physics

2 answers

Harsh Yadav 5 years, 10 months ago

Anybody cannot change its state unless an external force is applied on it

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Fardeen Alam 5 years, 11 months ago

Nothing

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V=u+at

Posted by Ankit Garg 5 years, 11 months ago

Entrance Exam > JEE main > Physics

3 answers

Arjun Rajput 5 years, 11 months ago

Starting with formula of acceleration A=v-u/t and arrange it

1Thank You

Ngamminthang Lhanghal 5 years, 11 months ago

What is the procedure to through JEE MAIN

1Thank You

Ngamminthang Lhanghal 5 years, 11 months ago

Interesting

1Thank You

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What is van-di garph genrator

Posted by Mayank Sahu 6 years ago

Entrance Exam > JEE main > Physics

1 answers

Yogita Ingle 6 years ago

Van de graaff generator is used to generate high voltages of the order of a few million volts. This results in generation of large electric fields for experimental purposes.

Principle

The inner sphere has a higher potential than outer if the charge q is positive.
If the two spheres are connected through a wire, the charge will flow from high to low potential.
Thus, providing smaller potentials at the inner sphere will keep building large amount of charge at the outer sphere, till the breakdown field of air (3 x 106 V/m) is reached.
This accumulates close to millions of volts.

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A block of mass 10kg is kept on a horiz ontal surface. A force F is acted on the block .for what minimum value of F, the block will be lifted up?

Posted by Rubina Parveen 6 years ago

Entrance Exam > JEE main > Physics

6 answers

Anurag Chaturvedi 5 years, 10 months ago

If g= 9.8 then answer 98 If g= 10 then answer 100

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Pratham Bindal 5 years, 11 months ago

100+fsina

1Thank You

Ankit Garg 5 years, 11 months ago

Incomplete ques

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Ashish Gupta 5 years, 11 months ago

98N

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Mukesh Devi 6 years ago

98N

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Ankit Chauhan 6 years ago

100

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A block of mass m suspended by light thread from elevator . The elevator is a celerated downward from rest with uniform acceleration a(<g) . The magnitude of work done by tension in thread on the block

Posted by Ankit Chauhan 6 years ago

Entrance Exam > JEE main > Physics

1 answers

Gaurav Seth 6 years ago

A block of mass m is suspended by a light thread from an elevator. the elevator is accelerating upward with uniform acceleration ‘a’.
we know, Newton's law doesn't valid in non-inertial frame of reference. so, we have to add Psuedo force just opposite direction of it motion to make inertial frame of reference.
so, tension in the thread = mg + ma→ [ Psuedo force]
tension = m(g + a)

now, we have to find displacement of elevator.
use formula, S = ut + 1/2 At²
here A is net acceleration acts on elevator.
here u = 0, A = a [ upward direction]
so, S = 0 + 1/2 at²
hence, displacement is 1/2at²

now, workdone = Tension × displacement
= m(g + a) × 1/2 at²
= 1/2 m(g + a)at² Joule

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How much faster than it's present rate should the earth rotate about it's axis so that the weight of the body at the equator may be zero .what will be the duration of one day in that case

Posted by David Pangamte 6 years, 1 month ago

Entrance Exam > JEE main > Physics

0 answers

ANSWER

WHEN X2 = 1+T2 HERE X=DISPLACEMENT AND T=T FIND ACCELERATION

Posted by Animesh Manik 6 years, 1 month ago

Entrance Exam > JEE main > Physics

0 answers

ANSWER

Two identical conducting spheres,fixed in space,attract each other with an electrostatic force of 0.108N when separate by 50.0cm center to centre.A thin conducting wire then connect the spheres. When the wire is removed,the spher repal each other with an electrostatic force of0.0360N .what were the initial charges on spherres

Posted by Lavit Chauhan 6 years, 2 months ago

Entrance Exam > JEE main > Physics

1 answers

Jagdeep Sing 6 years, 1 month ago

0.8

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What is light

Posted by Colanroy Nongrang 6 years, 2 months ago

Entrance Exam > JEE main > Physics

3 answers

Rahul Verma 5 years, 11 months ago

Simply light is an electromagnetic wave.

0Thank You

Aman Kataria 6 years, 1 month ago

Light is a form of energy that is emitted or absorbed by an body in the form of electromagmetic waves . It has dual nature wave and particle .

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Ayush Mishra 6 years, 1 month ago

Light is a form of energy which produces visible sensation in our ? eyes

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a juggler is throwing certain identity balls into the air at a rate of 4 balls in two seconds.

Posted by Kousik Mitra 6 years, 2 months ago

Entrance Exam > JEE main > Physics

0 answers

ANSWER

What is the charge of nucleus?

Posted by Kavya Kavya 6 years, 2 months ago

Entrance Exam > JEE main > Physics

3 answers

Aman Kataria 6 years, 1 month ago

It is around 1.6 × 10^-19 C .

0Thank You

Arup Das 6 years, 2 months ago

Nice

1Thank You

Kartik Kitukale 6 years, 2 months ago

As nucleus have neutral neutrons and positive protons total charge on nucleus os positive there is no relation between charge on nucleus by that of electrons

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A ball is dropped from a bridge 122.5m above a river. After the ball has been falling for two second, a second ball is thrown straight down after it. What must its initial velocity be so that both hit the water at the same time?

Posted by Varun Tripathi 6 years, 2 months ago

Entrance Exam > JEE main > Physics

0 answers

ANSWER

Two vector a^ and b^ are at an angle of 60°with each other. Their resultant make an angle of 45°with a.If |b^| = 2 unit. Then |a^| is.(answer with explanation)

Posted by Satyendra Tiwari 6 years, 3 months ago

Entrance Exam > JEE main > Physics

0 answers

ANSWER

How can we estimate the error in the (i) sum (ii) difference (iii) product (iv) quotient (v) power of different measured quantities. Deduce the general rule for evaluating the error in a combined calculation.

Posted by Dhananjay Kumar Sharma 6 years, 3 months ago

Entrance Exam > JEE main > Physics

0 answers

ANSWER

A very long uniformly charged thread oriented along axis of a circle of radius R rests on its center with one of the ends. The charge of thread per unit length is equal to lambda. Find flux of vector E across the circle area.

Posted by Shaurya Jain 6 years, 4 months ago

Entrance Exam > JEE main > Physics

0 answers

ANSWER

A body when rubbed gets charged due to either transfer of e- .......where does the e- get charged from??

Posted by Aditya Kaushal 6 years, 4 months ago

Entrance Exam > JEE main > Physics

2 answers

Aditya Kaushal 6 years, 4 months ago

What made them charged???? This is my question??

2Thank You

Harsh Jha 6 years, 4 months ago

They doesn't get charged from anywhere because they are charged ones.

2Thank You

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How electric field is generated??

Posted by Aditya Kaushal 6 years, 4 months ago

Entrance Exam > JEE main > Physics

2 answers

As Gaming Station 5 years, 1 month ago

When charge is at rest or when charge is at motion

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Sushanta Karmakar 6 years, 2 months ago

Electric field is generated due to a point charge or a system of charges. The point charge or a system of charge interact with other charges via the electric field produced by them.

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The normal duration of I.Sc. Physics practical period in Indian College's is 100 minutes.Express this period in microcenturies.1 microcentury=10^-6×100 years.

Posted by Vikhyat Kumar 6 years, 4 months ago

Entrance Exam > JEE main > Physics

1 answers

Harsh Dewal 6 years, 3 months ago

Are u mad

1Thank You

ANSWER

Define motion

Posted by Pige Nyorak 6 years, 5 months ago

Entrance Exam > JEE main > Physics

1 answers

Yogita Ingle 6 years, 5 months ago

If an object changes its position with respect to its surroundings with time, then it is called in motion.

2Thank You

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How many gram of sulphuric acid are required for complete solution of 6 gram magnesium carbonate

Posted by Vaishali Sharma 6 years, 5 months ago

Entrance Exam > JEE main > Physics

3 answers

Pulkit Bansal 6 years, 5 months ago

Check my maths question.

0Thank You

Vaishali Sharma 6 years, 5 months ago

3.03 gm

3Thank You

Pulkit Bansal 6 years, 5 months ago

Whats the answer given??

3Thank You

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Body fall downward gravity why

Posted by Dhaneshwr Nag 6 years, 5 months ago

Entrance Exam > JEE main > Physics

1 answers

Tripti Rawat 6 years, 5 months ago

The force of gravity causes objects to fall toward the center of Earth.

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Hello guys if i do india s best study material and notes then will i able to get 200 plus in jee mains plz tell

Posted by Manu Maurya 6 years, 5 months ago

Entrance Exam > JEE main > Physics

1 answers

Alok Singh 4 years, 10 months ago

Bhai bada bhai man mujhe Aur mein Shi Shi bata the hoon Apan jee ki rank k leke kabhi nhi sure nhi ho skte Study as much as u can Give it best So at last u don't have any regret

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Hello guys am an 12 th passed student (13 th class student or dropper) I live in barabanki am going to join resonance coaching in lucknow vishesh batch for iit prep is it good or should i join any other coaching in lucknow or should go for online course for prep of iit if yes then which online course is best

Posted by Manu Maurya 6 years, 5 months ago

Entrance Exam > JEE main > Physics

1 answers

Priya Dharshini ? 6 years, 4 months ago

I dont have any idea brother about lucknow.... u can try unacademy in online.... u can check review of that coaching centre. If u can study hard u can get iit. All coaching centres will provide worksheets,test,study material and help u if u have doubts hope for best. Best of luck..

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