FINAL ANSWER KEY

Question Paper Code: 31/2016/0L
Category Code: 370/2015
Exam: Welfare Organiser
Medium of Question: English
Date of Test 10-03-2016
Alphacode A
Question1:-Which of the following is a scalar quantity 7

A:-force

B:-work

C:-acceleration

D:-velocity

Correct Answer:- Option-B
Question2:-The colour in the outer arc of a primary rainbow is
‏أعامايديم‎
‎B:-blue
‎C:-green
‎D:-red
‎Correct Answer:- Option-D
Question3:-SI unit of electric current is
A:-newton
B:-pascal
C:-ampere
D:-volt
Correct Answer:- Option-C
Question4:-According to Ohm's law, the relation between resistance (R), current (I} and potential difference )۷( ‏کا‎

D:-none of these
Correct Answer:- Option-A
Question5:-The statement of Newton's second law is
A:-For every action there is equal and opposite reaction
B:-The rate of change of momentum of a body is directly proportional to the extemnal force acting ೦೧ it.
C:-Everybody continues the state of rest or uniform motion in the absence of force.
D:-Everybody in the universe attract all other bodies with a force which is directly proportional to their masses and
inversely proportional to the square of the distance between them
Correct Answer:- Option-B
Question6:-Which of the following device is used to reduce electric current in an a ¢ clreult without reduction in power
A:-capacitor
B:-resistor
C:-inductor
D:-a € generator
Correct Answer:- Option-C
Question7:-If 8 radicactive nucleus emits an alpha particle,
A:-its atomic number increases by one and mass number decreases by One.
B:-its atomic number increases by one and mass number remains the same
C:-its atomic number decreases by two and mass number decreases by four
:-its atomic number decreases by four and mass number decreases by two
Correct Answer:- Option-C
Question8:-The reason for the blue colour of the ocean is
A:-scattering
B:-interference
C:-reflection
D:-diffraction
Correct Answer:- Option-A
Question9:-Which of the following can be used to make rectifier