## Height of Antenna and range of transmission

A TV Tower has a height h. Derive expression for the maximum distance upto which signals can be received on earth.

## Electrostatics : A Practice Test Paper – 1

Time: 45 min

Max. Marks: 25

1. How does the force between two point charges change, if the dielectric constant of the medium in which they are kept, increases? [1]
2. Name the

## Derive an expression for current in terms of drift velocity. (Derive I = nAev)

(This is being posted as per request from students)

Consider a conductor of length l and area of cross section A. Let the number of free electrons per unit volume be n. When a pd V is applied, let the

## Class XII Physics SOME QUESTIONS FROM CBSE 2004 Board Question Paper

Physics 2004 Set 1

1. Why is shortwave band used for long distance radio broadcast?
2. Two metals A and B have work functions 2 eV and 5 eV respectively. Which metal has lower threshold wavelength?
3. Draw

## Download as PDF oscillations

PHYSICS TEST PAPER (OSCILLATIONS)

Time : 1 ½hr M. Marks: 40

• Q.Nos 1 to 5 carries 1 mark each
• QNos 6 to 10 carry 2 marks each
• QNos 11 to 15 carry 3 marks each
• QNos 16 – 17 carry 5 marks each

1.      What is periodic motion?

2.      How will the time period of a simple pendulum change if its length is doubled?

3.      Two

## SET OF MUST PRACTICE QUESTIONS FOR CBSE PHYSICS CLASS XII (AISSCE PHYSICS 2011)

Hello Dear Students, If you were searching for a set of questions which you cannot afford to leave while preparing for AISSCE 2011 Physics Exam, Here it is. Please practice them carefully. If you have