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when object placed in dencer medium and vertiual image formed.define it

Posted by Siddharth Suman 7 years, 2 months ago

CBSE > Class 12 > Physics

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Why length of dipole considered from negative to positive ?

Posted by Sneha Singh 5 years, 5 months ago

CBSE > Class 12 > Physics

2 answers

Kriti Chhetri 7 years, 2 months ago

the dipole moment vector is directed from the negative charge to the positive charge because the position vector of a point is directed outward from the origin to that point.It's just because the charge of an electron is negative (by convention).

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Anu Gupta 5 years, 5 months ago

P=q×d because it is vector quantity

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Find the time of flight of a projectile of which path passing through the corner of hexagon of 10√3

Posted by Sumit Singh 7 years, 2 months ago

CBSE > Class 12 > Physics

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Notes in physics first chapter in +2

Posted by Shifa Suadha 7 years, 2 months ago

CBSE > Class 12 > Physics

2 answers

Amarjeet Singh 7 years, 2 months ago

Any mode of convenience to send them to you

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Amarjeet Singh 7 years, 2 months ago

I have them how can i send u

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hello friends today I have small question on please clear me the answer and my question is two bulbs of 60watt and 100watt are connected to mains of 240 volt then the bulb which offers more resistance is

Posted by Shaista Parveen 7 years, 2 months ago

CBSE > Class 12 > Physics

2 answers

Nitin Raghav 7 years, 2 months ago

60 watt becoz p=v2/r

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Hina Sagar 7 years, 2 months ago

100 watt wala bulb offers more resistance.ok

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Kichofs law

Posted by Monu Kumar 7 years, 2 months ago

CBSE > Class 12 > Physics

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Example 1.4 ncert 1st lesson

Posted by Jiyaul Ali 7 years, 2 months ago

CBSE > Class 12 > Physics

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Which defect is observed in a solid solution of CdCl2 and AgCl.explain

Posted by Ilyas Khan 7 years, 2 months ago

CBSE > Class 12 > Physics

1 answers

Sandeep Kaur 7 years, 2 months ago

According to me in cdcl2 schottky defect is observed as they have almost same size ...... whereas in agcl frenkel defect is shown as there is size difference. ..

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state coulomb's law in electrostatics.express it in vector form hence show it obey newton's 3rd law

Posted by Yuvraj Singh Rangi 7 years, 2 months ago

CBSE > Class 12 > Physics

1 answers

Hina Sagar 7 years, 2 months ago

The electrostatic force between the two point charges q1 and q2 is directly proportional to the product of two charges q1q2 and inversely proportional to the square of the distance between them(two point charges q1 and q2) is r2(r square).

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A caloriemeter of water equvalent 5.4g constants 45g of water at a temperature of 15c .in this 3g of dry steam is condensed.specific latent heat of steam=450calg.temperature of steam =100c

Posted by Pragati Sahu 7 years, 2 months ago

CBSE > Class 12 > Physics

0 answers

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All sets of physics of 2006-2007A,B,C OF CBSE CLASS 12

Posted by Rajbir Gahlawat 7 years, 2 months ago

CBSE > Class 12 > Physics

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Define Gauss theoram

Posted by Anushka Singh 7 years, 2 months ago

CBSE > Class 12 > Physics

1 answers

Hina Sagar 7 years, 2 months ago

The fulx of electric field through any closed surface is 1/Eo times the total charge enclosed by surface.

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Third law of newton's

Posted by Nirmal Kumar Naik 7 years, 2 months ago

CBSE > Class 12 > Physics

1 answers

Sooraj Singh 7 years, 2 months ago

Newton's third law state that Every action has equal and opposite reaction.

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Why the sky is blue

Posted by P.V.K Kumar 7 years, 2 months ago

CBSE > Class 12 > Physics

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Find the electric field intensity due to a uniformly charged sphere shell at a point outside the shell and inside the shell. Plot the graph of electric field with distance from the centre of the shell

Posted by Sisir Sharma 7 years, 2 months ago

CBSE > Class 12 > Physics

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Activity note book pdf

Posted by Koustav Mukherjee 7 years, 2 months ago

CBSE > Class 12 > Physics

1 answers

Tamoghna Roy 7 years, 2 months ago

Just Google it!!

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A grinding wheel of mass 5.0 kg and diameter 0.4 m is rotating with an angular speed 2re s-1 calculate the torque which will to 8 revolution per second in 2s

Posted by Shashank Raja Bhaiya 7 years, 2 months ago

CBSE > Class 12 > Physics

0 answers

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What is ohms law? Explain it.

Posted by Probhakar Roy 7 years, 2 months ago

CBSE > Class 12 > Physics

2 answers

Sooraj Singh 7 years, 2 months ago

A law stating that electric current is directly proportional to voltage and inversely proportional to resistance.

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Priyanka Rani 7 years, 2 months ago

At constant temperature current flowing through a wire is directly proportional to potential difference .

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What happens to spring when current pass through it

Posted by Sakshi Muskan 7 years, 2 months ago

CBSE > Class 12 > Physics

1 answers

Kriti Chhetri 7 years, 2 months ago

when a current will pass through the spring the magnetic filed will produce since the current pass in same direction in all coil of spring , the magnetic field wil have same direction all coils . this causes the spring to reduce its length , so, compress

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How far apart should the two electrons be if the force each exerts on the other is equal to the weight of the electron?

Posted by Rishabh Yadav 7 years, 2 months ago

CBSE > Class 12 > Physics

1 answers

Kriti Chhetri 7 years, 2 months ago

Let r distance between two electrons . F = Force exerted by one electrons to other F = Ke²/r² weight of electron = mg a/c to question , F = mg Ke2/r² = mg 9×10^9 × {1.6 × 10^-19 }²/r² = 9.1 × 10^-31 × 10 r² ={ 9 ×2.56/9.1 } × 10^-38+30+9 = 25.31 r = 5.03 m

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calculate the force acting between two magnetic 15 cm each and pole strength 18 inch when separated by North Pole is equal to 10 and from South Pole is equal to 40 cm

Posted by Deepak Tanwar 7 years, 2 months ago

CBSE > Class 12 > Physics