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What is polarize light ?

Posted by Vikash Vishwal 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Reshma Raju 7 years, 1 month ago

Polarized light waves are light waves in which the vibrations occur in a single plane

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ANSWER

What are bands actually in an atom?

Posted by Lalit Tiwari 7 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

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Transverse wave nature of light explain

Posted by Jignesh Patil 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Jignesh Patil 7 years, 1 month ago

Polorisation, diffraction,interference,propagation

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Why polarised glass is used in vehivles

Posted by Tusharika Sahu 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Sukanya Priyadarshini 7 years, 1 month ago

Because the reflection of light won't be hurting your eyes. Suppose, jab app apne ghare ke light bulb ko kisi normal glass re dekho tho the light reflecting will hurt your eyes but if you see that light using polarised glass then the reflecting light will change optically activated direction resulting no pain in your eyes. Hope this answer helped you.

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What is kaleidoscope

Posted by Ruhi S 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Yogita Ingle 7 years, 1 month ago

A kaleidoscope is an optical device which creates colourful beautiful patterns due to multiple reflections in plane mirrors. It is a cylinder which has three plane mirrors and loose, colored objects such as beads or pebbles and bits of glass. As the viewer looks into one end, light entering the other end creates a colorful pattern, due to multiple reflection of these objects in the mirrors.

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What is gate

Posted by Mohd Shayan 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Sukanya Priyadarshini 7 years, 1 month ago

Building blocks of electronic circuits. In logic gates there exist a logical relationship between output and input

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What is the difference between electric and magnetic field.?

Posted by Monťý Harsh 7 years, 1 month ago

CBSE > Class 12 > Physics

2 answers

Yo Yo Honey Singh ? 7 years, 1 month ago

How you made the table tell me

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Yogita Ingle 7 years, 1 month ago

Electric Field	Magnetic Field
It creates electric charge in surrounding	Creates electric charge around moving magnets
Measured as newton per coulomb, volt per meter	Measured as gauss or tesla
Proportional for the electric charge	Proportional to speed of electric charge
Are perpendicular to the magnetic field	Are perpendicular to the electric field
Generates VARS	Absorbs VARS

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How the magnetic field induced,?

Posted by Monťý Harsh 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Amit Yadava 7 years, 1 month ago

Magnetic field can be induced by moving charges in the straight wire or current carrying loop like in solenoid

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A parallel plate capacitor is charged by a battery and the battery remains connected a dielectric slab is inserted in the space between the plates explain what changes if any occur in the values of i) potential difference between the plates ii) electric field between the plates iii)energy stored in the capacitor

Posted by Sonia Paruthi 7 years, 1 month ago

CBSE > Class 12 > Physics

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Explain the underlying principle of working of a parallel plate capacitor if two similar place each of area A having surface charge densities + Sigma and - Sigma are separated by a distance D in air write expression for i) the electric field at point between two plates ii) the potential difference between the plates and iii)the capacity of the capacitor so formed

Posted by Sonia Paruthi 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Punam Rani 2 years, 5 months ago

ans

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Mass of the pith ball m=01gm Radius of the ball a=0.1cm Lenght of thread l=9.5 cm Cal. The charge on ball b1 and ball b2 and also the distance between two balls

Posted by Darshan Kumar 7 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

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Two metals Aand B have work function 2ev and 4ev . Which metal has lower threshold wavelength for photoelectric effect.?

Posted by Shubham Gupta 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Omiiiii Mehta 7 years, 1 month ago

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Why electric field lines are always normal to the conductor ?

Posted by Harmanpreetkaur Kaurgill 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Reshma Raju 7 years, 1 month ago

Electric Field lines are perpendicular to the surface of any conductor because of vector addition of the fields. ... If the Electric Field had components parallel to the surface of a conductor, free charges on the surface would move, contradicting electrostatic equilibrium

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How charges at rest can produce electricity with two example

Posted by Savita Duhan 7 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

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I want blue print of physics paper with each chapter

Posted by Veer Malik 7 years, 1 month ago

CBSE > Class 12 > Physics

2 answers

Aditi Bhat 7 years, 1 month ago

1 Electrostatics& Current Electricity(15 marks) 2 Magnetic Effects of Current and Magnetism & Electromagnetic Induction and Alternating Currents(16 marks) 3 Electromagnetic Waves & Optics(17 marks) 4 Dual Nature of Matter and Radiation & Atoms and Nuclei 5 Electronic Devices & Communication Systems(12, marks) -Total Marks 70

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Yo Yo Honey Singh ? 7 years, 1 month ago

There is no blueprint of any paper in CBSE board

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I want all india and delhi questionpapers of physics of year 2008,2009,2010

Posted by Rajwant Kaur 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Yo Yo Honey Singh ? 7 years, 1 month ago

Go to CBSE official website you will definitely get it

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Is electric current a scalar or vector quantity &why?

Posted by Soumya Ranjan Puhan 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Danush Sk 7 years, 1 month ago

Electric current is a scalar quantity because it doesn't follow triangular law of vector addition.

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Name the electromagnetic waves that are widely used as Diagnostic tool in medicine.

Posted by Anurag Negi 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Gaurav Seth 7 years, 1 month ago

Ultraviolet light can be used to treat some skin conditions and as a sanitizing agent.
X-rays are an important diagnostic tool for observing internal body structures.
Gamma rays are sometimes used to kill cancer cells with precision.

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Polaristion of reflection

Posted by Chandan Yadav 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Ash Thunderbird ✔ 7 years, 1 month ago

I think you mean Brewster's law. When unpolarised light is incident at polarising angle (iB) on an interface separating air from a medium of say, refractive index (n), then reflected light is plane polarised (perpendicular to plane of incident) provided n = taniB

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Why is NOT gate known as inverter?

Posted by Ruhi S 7 years, 1 month ago

CBSE > Class 12 > Physics