1
IIT-JEE 1980
Subjective
+3
-0
Give the MKS units for each of the following quantities.

(i) Young's modulus

(ii) Magnetic Induction

(iii) Power of a lens

2
IIT-JEE 1980
True or False
+1
-0
A rocket moves forward by pushing the surrounding air backwards.
A
TRUE
B
FALSE
3
IIT-JEE 1980
MCQ (Single Correct Answer)
+3
-0.75
A block of mass 2 kg rests on a rough inclined plane making an angle of $$30^\circ $$ with the horizontal. The coefficient of static friction between the block and the plane is 0.7. The frictional force on the block is
A
9.8 N
B
0.7$$ \times $$9.8$$ \times $$$$\sqrt 3 $$ N
C
9.8$$ \times $$$$\sqrt 3 $$ N
D
0.7$$ \times $$9.8
4
IIT-JEE 1980
MCQ (Single Correct Answer)
+3
-0.75
A ship of mass 3 $$ \times $$ 107 kg initially at rest, is pulled by a force of 5 $$ \times $$ 104 N through a distance of 3 m. Assuming that the resistance due to water is negligible, the speed of the ship is
A
1.5 m/s
B
60 m/s
C
0.1 m/s
D
5 m/s
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