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+2 Physics Plus Two Physics Question Bank Question Papers questionbank Sample Papers

CLASS XII PHYSICS SAMPLE PAPER FOR AISSCE 2012

CLASS XII – SAMPLE PAPER PHYSICS Time allowed : 3 hours Max. Marks : 70 General Instructions: All questions are compulsory There are 30 questions in total. Questions 1 to 8 carry one mark each, 9 to 18 carry two marks each, 19 to 27 carry 3 marks each and 28 to 30 carry 5 […]

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Plus Two Physics

Coherent and incoherent addition of waves

If the waves are coherent, then the resultant intensity is given by I = I1 + I2 + 2 √(I1 I2 Cos Θ), where Θ is the phase difference between two waves. For the constructive interference the value of Θ = 0°, so that the Cos Θ = 1 and for the destructive interference the value of  Θ = […]

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Ask Physics cross product KINEMATICS product Project Salman scalar scalar and vector vector product

Difference between Scalar Product and Vector Product

“What is the difference between dot product and cross product?” [The question was posted by Salman)
Incoming search terms:scalar products soulutionLink to this post!

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Is potential difference is directly proptional to resistance?

Is potential difference is directly proptional to resistance? (atanu asks) Answer: For a constant current, the potential difference is directly proportional to the resistance included in the circuit. For a given conductor at constant temperature, resistance is a constant and the potential difference across it is directly proportional to the current passed through it.  

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How graphs are made for different processes like isothermal, isobaric, isochoric & adiabatic?

How graphs are made for different processes like isothermal, isobaric, isochoric & adiabatic? Answer: Hope you are talking about the PV diagrams. The difference between isothermal and adiabatic curve is that the adiabatic curve is more steeper than an the isothermal curve. In isobaric, P remains constant and hence will give a horizontal line (if […]

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Difference between electric field and magnetic field?

What is difference between electric field and  magnetic field?
Hope that the following link will help you find the answer.
Difference between Electric and Magnetic fields
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CBSE Exam Help previous question papers

CBSE Question Paper 2007

SET -1 In a series LCR circuit, the voltages across an inductor, a capacitor and a resisitor are 30 V, 30V and 60 V respectively. What is the phase difference between the applied voltage and the current in the circuit? Ultraviolet radiations of different frequencies f1 and f2 are incident on two photosensitive materials having […]