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It is the part of the spectrum that is detected by the human eye. It runs from about 4×1014Hz to about 7×1014Hz or a wavelength range of about 700- 400 nm. Visible light emitted or reflected from objects around us provides us information about the world. Our eyes are sensitive to this range of wavelengths.

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3.3×10^9 +3.3×10^63.3×10^4

Posted by Gaurav Gaurav 1 year, 10 months ago

CBSE > Class 12 > Physics

1 answers

Jaspreet Kaur 1 year, 10 months ago

6.584365639397437e+67

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Which is bigger - a coulomb or a charge on an electron? How many electronic charges form one coulomb of charge?

Posted by Srishti Singh 1 year, 10 months ago

CBSE > Class 12 > Physics

1 answers

Aseem Mahajan 1 year, 10 months ago

<font face ="Times New Roman">Coulomb is bigger
6.25 × 10¹⁸electrons will make 1C
Are you Aadya Singh?

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TIR Conditions.....using snell's law....????????derivation..???

Posted by D. Gautham 1 year, 10 months ago

CBSE > Class 12 > Physics

1 answers

Anjan Karthi 1 year, 10 months ago

So, the derivation begins with the definition for critical angle for a particular medium which is defined as the angle of incidence from a particular medium at the interface above which the refracted ray gets reflected internally (TIR) to the same medium without any loss of energy. At critical angle, <r = 90°. Therefore, refractive index of air with respect to medium n = sin <i / sin < r = sin c / sin 90° = sin c. Therefore, refractive index of medium = (sin C) ^-1.

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Two point charges of + 10 microcoulomb and + 40 microcoulomb respectively are placed 12 CM apart find the position of the point where electric field is zero

Posted by Karan Dabi 1 year, 10 months ago

CBSE > Class 12 > Physics

1 answers

Anjan Karthi 1 year, 10 months ago

kQ1/x ^2 = kQ2/(12-x) ^2 . 10^-5/x^2 = 4 × 10^-5 / (12-x) ^2. 12-x/x = √4 = 2. x = 4 cm.

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If the electric field is given by E=8î + 4j^ + 3k^ NC¹, Calculate the electric flux through a surface of area 100m² lying in the X-Y plane.

Posted by Harshit Rathee 1 year, 10 months ago

CBSE > Class 12 > Physics

2 answers

Kinshuk Sen 1 year, 10 months ago

E = 8i^ + 4j^ + 3k^ A = 100 X-Y plane = i^ direction Φ = E•A (Dot Product) Φ = (8i^ + 4j^ + 3k^)•(100i^) Φ = 800 +0 +0 Φ = 800 Nm/C

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Aseem Mahajan 1 year, 10 months ago

<font face ="Times New Roman">XY plane has area vector in Z direction so you just need z component of electric filed and apply standard formula,
$$\rm \phi = E_{z} A$$

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The shape of the interference fringes in young double slit experiment when D is very large as compared to fringe width

Posted by Anmolpreet Singh 1 year, 10 months ago

CBSE > Class 12 > Physics

1 answers

Anjan Karthi 1 year, 10 months ago

Hyperbolic.

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Who follower is growing up in the soile.

Posted by Bhairavarapu Namrutha 1 year, 10 months ago

CBSE > Class 12 > Physics

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What is the belle milk

Posted by Bhairavarapu Namrutha 1 year, 10 months ago

CBSE > Class 12 > Physics

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What is motion in stomake

Posted by Bhairavarapu Namrutha 1 year, 10 months ago

CBSE > Class 12 > Physics

1 answers

Ajay Kumar Moond 1 year, 10 months ago

Peristalsis movement in stomach

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How many barne in the human body

Posted by Bhairavarapu Namrutha 1 year, 10 months ago

CBSE > Class 12 > Physics

1 answers

Gunjan Patil 1 year, 10 months ago

206

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What is human Life World

Posted by Bhairavarapu Namrutha 1 year, 10 months ago

CBSE > Class 12 > Physics

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Three identical bodies A, B &C carries charge +q , -q and 0 respectively. Find final charge on all of them

Posted by Raza Khan 1 year, 10 months ago

CBSE > Class 12 > Physics

1 answers

Anshul Pratap Singh 1 year, 9 months ago

0 ,if they touch each other

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What is electrostatic potential??

Posted by Account Deleted 1 year, 10 months ago

CBSE > Class 12 > Physics

3 answers

Aseem Mahajan 1 year, 10 months ago

<font face ="Times New Roman"><i>Irony and sarcasm shouting from the corner

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Ruhana Parvin 1 year, 10 months ago

The amount of work done to move a unit charge from a reference point to a specific point inside the field without producing an acceleration.

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Account Deleted 1 year, 10 months ago

Hahaha nice joke ..

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Electric field in sheet due to point charge

Posted by Nasir Hussain 1 year, 10 months ago

CBSE > Class 12 > Physics

1 answers

Anshul Pratap Singh 1 year, 9 months ago

Sigma/ €°

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Coluambs Law

Posted by Ankit Kumar 1 year, 10 months ago

CBSE > Class 12 > Physics

1 answers

Donald Dandasena 1 year, 10 months ago

Coulomb law state that the force of attraction or repolestion between two stationary point charges is directly propersnal to the product of magnitude of the 2 charges and inversely perposnal to square of the distance between them

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Who is called father of Indian Physics?

Posted by Basant Pandey 1 year, 10 months ago

CBSE > Class 12 > Physics