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The chemistry of Corrosion of iron is essentially an electrochemical phenomenon explain the reaction occurring during the corrosion of iron in the atmosphere

Posted by Ritesh Kumar 8 years ago

CBSE > Class 12 > Physics

0 answers

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Same current is passed through two wires of same dimensions for same time with resistance 10 ohm and 100 ohm, which wire will get more heated??

Posted by Kripendra Kumar 8 years ago

CBSE > Class 12 > Physics

2 answers

Prachi Agarwal 8 years ago

H=i^2rt

Prachi Agarwal 8 years ago

100ohm resistance will get more heated as P=i2rt p is directly propotional to r

ANSWER

Why higher atomic number after 20 the neutrons exceeds over proton?

Posted by Anjali Anu 8 years ago

CBSE > Class 12 > Physics

0 answers

ANSWER

What is the concept of mirage? How is it based on total internal reflection?

Posted by Avantika Rawat 8 years ago

CBSE > Class 12 > Physics

0 answers

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using the concept of force between two infinetly long parallel current carrying conductor define 1 ampere

Posted by Ansh Roy Ansh Roy 8 years ago

CBSE > Class 12 > Physics

0 answers

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A soldier fires a gun in front of a steep hill and hears the echo after 4.8 seconds calculate the distance of the soldier from The Hills given that's speed of sound in air is 345 M per second

Posted by Basant Sharma 8 years ago

CBSE > Class 12 > Physics

0 answers

ANSWER

What is pn junction

Posted by Harshit Sindhi 8 years ago

CBSE > Class 12 > Physics

3 answers

Chetna Kaundal 8 years ago

Single crystal of Si or Ge And term junction implies the boundary or region of transition between n-type and n-type semiconductor material. The junction will behave as the discontinuity for the flowing charge carriers .

Chetna Kaundal 8 years ago

It is a single crystal which is doped in such a manner that it's half portion acts like p type semiconductor and another half portion acts as n type semiconductor.

Vineet Singh 8 years ago

Etna bhi nahi pata yar

ANSWER

Draw schematically an equipotential surface in a uniform electrostatic fiel

Posted by Manu Sukhpreet 8 years ago

CBSE > Class 12 > Physics

0 answers

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Sir what is electric field

Posted by Vivek Varun 8 years ago

CBSE > Class 12 > Physics

2 answers

Trisha Tyagi 8 years ago

the space around a charged particle in which its influence can be experience by electric charge

Nidhi Yadav 8 years ago

Electric field is defined as force per unit test charge.

ANSWER

I am very weak in physics numerical problems please someone give me the photos of all the formulas used in numericals and key points

Posted by Shweta Kashyap 8 years ago

CBSE > Class 12 > Physics

1 answers

Avinash Phalswal 8 years ago

Do smart work

ANSWER

Calculate the work done to dissociate the system of three charged placed on the vertices of a triangle as shown in the figure

Posted by Pranshul Pandit 8 years ago

CBSE > Class 12 > Physics

0 answers

ANSWER

What is polarisation

Posted by Ankita Dutta 8 years ago

CBSE > Class 12 > Physics

1 answers

Kashifa Aslam 8 years ago

the action of restricting the vibrations of a transverse wave, especially light, wholly or partially to one direction.

ANSWER

What is the direction of induced current in a circular loop when north polarity is developed

Posted by Summi Farheen 8 years ago

CBSE > Class 12 > Physics

1 answers

Shivani Parmar 8 years ago

Anticlockwise

ANSWER

What is light?

Posted by Shashank Mishra 8 years ago

CBSE > Class 12 > Physics

2 answers

.Ismat .Jamil 8 years ago

Light is electromagnetic wave.It lies in visible range spectrum of wave

Keerthanah Sivakumar 8 years ago

Light is a form of energy

ANSWER

how does the angle of minimum deviation of glass prism vary, if the incident violent replaced by red light ? give reason

Posted by Vivek Yadav 8 years ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Zener diode

Posted by Nandana J S 8 years ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Why are NAND gates or NOR gates called digital building block ?

Posted by Rohit Sharma 8 years ago

CBSE > Class 12 > Physics

1 answers

Himanshu Bisht 8 years ago

Because all other gates can b derived from this NAND and NOR GATE

ANSWER

What is force?

Posted by Baibhav Singh 8 years ago

CBSE > Class 12 > Physics

0 answers

ANSWER

CHARGE

Posted by Mohan S 8 years ago

CBSE > Class 12 > Physics

0 answers

ANSWER

the frequency of light falling on a metal is doubled. what will be the effect on photo current and the maximum k.E of emitted photo electrons

Posted by Ankush Thapa 8 years ago

CBSE > Class 12 > Physics

0 answers

ANSWER

A steel cooker of mass 500 gm

Posted by Amit Vats 8 years ago

CBSE > Class 12 > Physics

0 answers

ANSWER

When a photosensitive surface is illuminated with light of wavelength the stopping potential is Co but when light of wavelength 2 is incident on the same surface the stopping potential is what is the threshold wavelength for the surface?

Posted by Kiran Bhale 8 years ago

CBSE > Class 12 > Physics

0 answers

ANSWER

What is glycolysis

Posted by Shalu Singh 8 years ago

CBSE > Class 12 > Physics

0 answers

ANSWER

State Brewster's law.

Posted by Kapil Negi 8 years ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Rafractive index of air,water nd glass??

Posted by Akanksha Sharma 8 years ago

CBSE > Class 12 > Physics

1 answers

Khushboo Arora 8 years ago

R. I of air is 1 R. I of water is 1.33 R. I of glass is 1.52

ANSWER

An electromagnetic wave of wavelwavelength lemda is incident on a photosensitive surface of negligible work function.If the photon electron emitted from this surface have the de broglie wavelength lemda1. Prove that Lemda=[2mc/h]×lemda1^2

Posted by Nishant Sharma 8 years ago

CBSE > Class 12 > Physics

0 answers

ANSWER

What do you meant by physics

Posted by Simran Dewani 8 years ago

CBSE > Class 12 > Physics

0 answers

ANSWER

What is the formula of induced emf

Posted by Nihal Choudhary 8 years ago

CBSE > Class 12 > Physics

1 answers

Sohanlal Shori 8 years ago

ff6yvuh

ANSWER

A jet plane is traveeling towards west at a speed of 1800km/h . what is the voltage difference developed between the ends of the wings having the span of 25 m if the earths magnetic field at a location has a magnitude od 5×10-4T and dip angle of 30 degree?

Posted by Harsh Guleria 4 years, 6 months ago

CBSE > Class 12 > Physics

1 answers

Sia ? 4 years, 6 months ago

ANSWER

Resolving power Of telescope

Posted by Akash Bindhani 8 years ago

CBSE > Class 12 > Physics

0 answers

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