FINAL ANSWER KEY

Question Paper Code: 31/2016/OL
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 ?
A:-force
-work
C:-acceleration
D:-velocity

Correct Answer:- Option-B

Question2:-The colour in the outer arc of a primary rainbow is
A:-violet
B:-blue

Correct Answer:- Option-D
Question3:-S! unit of electric current is
A:-newton
-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 (V) is

اللا د هعنم
‎B:-R=VI‏
‎C:R=IV‏

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
-The rate of change of momentum of a body is directly proportional to the external force acting on 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 ¢ circuit without reduction in power
A:-capacitor
B:-resistor
C:-inductor
D:-a c generator
Correct Answer:- Option-C
Question7:-If a radioactive nucleus emits an alpha particle,
A:-its atomic number increases by one and mass number decreases by One.
:-its atomic number increases by one and mass number remains the same
its atomic number decreases by two and mass number decreases by four
D:-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