New student? Register here

# 10th Class Chapter 7 Physics Short Questions

An important facility for 10th class students preparing for short questions physics 10th class chapter 7 of BISE. Get hundreds of questions to prepare and get better marks in 10th physics

### 0

Our database contains a total of 0 questions for physics Short Questions. You’ll prepare using this huge databank.

##### Question: 1
How digital electronic devices work.
1-18
Digital electronics devices store and process bites electronically.
##### Question: 2
In oscilloscope how filament is heated.
2-18
In oscilloscope filament is heated electrically. When filament is connected to voltage source, current passses through filament and get heated.
##### Question: 3
Explain the uses of logic gates.
3-18
Logic gates in electronic circuits are used to do useful tasks. These circuits usually use light depending resistors to keep inputs LOW. an LDR can act as a switch that is closed when illuminated by light and open in dark.
##### Question: 4
Define analogy quantities.
4-18
quantities whose values very in continuously or remain constant are known as analogue quantities.
Example: Temperature, time, pressure, distance and analogue quantities.
##### Question: 5
What is meant by Boolean algebra?
5-18
It is a branch of mathematics which deals with the relationships of logic variables.
##### Question: 6
What is cathode ray oscilloscope?
6-18
An instrument which is used to display the magnitude of rapidly changing electric current or potential.
##### Question: 7
Give the examples of cathode ray tubes from yu daily life.
7-18
The picture in our T.V. set and display terminal of most computes are cathode ray tubes.
##### Question: 8
What are the values of Boolean variables.
8-18
Boolean variables can have only two values 0 and 1
##### Question: 9
Write some benefits of using digital electronic over analogue electronic.
9-18
i. There is no interference in digital signal
ii. Its easy to read digital quantities.
##### Question: 10
What is the use of grid in cathode ray oscilloscope.
10-18
In the electron gun the grid is used to control the flow of electron, thus control brightness on fluorescent screen.
##### Question: 11
What are digital quantities.
11-18
Digital quantities. Quantities whose values vary in non continuous manner are called digital quantities. Digital quantities are expressed in form of digits or numbers.
##### Question: 12
Name two factors which can enhance thermionic emission .
12-18
i. Increasing strength of the battery and voltage.
ii. By increasing temperature.
##### Question: 13
What is the use of electron gun.
13-18
It is used to investigate the properties of electron beam.
##### Question: 14
Why filament is heated.
14-18
Filament is heated for emission of electrons. If metal is heated to a high temperature, some of free electrons may gain sufficient energy to erscape metal surface.
##### Question: 15
Name some use of oscilloscope.
15-18
i. Displaying wave forms.
ii. Range finding
iii. Measuring voltages.
iv. Echo sounding .
v. Displaying heartbeats.
##### Question: 16
Why a large potential is applied between anode and cathode.
16-18
A large potential is applied between anode and cathode to accelerate the beam of electrons.
##### Question: 17
What is a cathode ray tube?