Class10th Physics Chapter 16


Total Marks: 25

1. The particles emitted from a hot cathode surface are :
Positive ions Negative ions Protons Electrons
2. The process by which electrons are emitted by a hot metal surface is known as
boiling evaporation conduction Thermionic emission
3. The output of a NAND gate is 0 when
both of its inputs are 0 both of its inputs are 1 any of its input is 0 any of its inputs is 1
4. If X=A.B then X is 1 when
A and B are 1 A or B is 0 A is 0 and B is 1 A is 1 and B is 0
5. The output of a two-input NOR gate is1 when
A is \'1\' and B is \'0\' A is \'0\' and B is \'1\' both A and B are \'0\' both A and B are \'1
6. AND gate can be formed by using two
NOT gates OR gates NOR gates NAND gates
7. What is the number of input terminals in Not Gate?
1 2 3 4
8. What is the basic logic operation of not gate?
Inversion and non-inversion Addition non-inversion Inversion
9. The electronic circuit which gives the inversion of input signals at the out put is called
And gate OR gate Not gate Nor gate
10. Which gate converts a logic level to an anti-logic level?
Not gate And gate OR gate None of these
11. X=A+B shows ___________ operation .
AND OR NAND NOT
12. For OR operation switches are connected in
Series Parallel Open circuit None of above
13. The bollean expression for OR gate is
X=A+B X=A.B B.A=X B+A=X
14. If X=A.B ,then X =1 when
A=1,B=1 A=0,B=1 A=0,B=0 A=1,B=0
15. Truth table of logic function ?
Tabulates all its input conditions Summaries its output values Displays all its input and output possible all the above
16. George Bole invented ?
Boolean Algebra Arithemetic Algebra Mean Algebra Geometry
17. The electronic systems used at present consist of
Analogue circuits Digital circuits Both a ,b None of these
18. Special algebra used in digital system is called
De. Morgan algebra Complex algebra Sample algebra Boolean algebra
19. Which one is not the basic operation of Boolean variables ?
And operation OR. Operation Nor operation Not operation
20. The number of basic operations upon which digital electronics is based ?
2 3 4 5
21. Digital system can describe the behaviour of any two variables by :
10 and 20 9 and90 10and 0 0 and 1
22. The electronic circuits which perform the various logic operations are called ?
Logic Gates Digital system Series circuit Parallel circuit
23. A system which deals with quantities or variables which have only two discrete values of states is called
Automatic system Logic Gates Boolean expression Digital system
24. Which gate is used in making burglar alarm .
NAND gate NOT gate AND gate OR gate
25. Those quantities whose values does very continuously or remain constant are called
constant quantities Continuous quantities Digital quantities Analog quantities