C:-Dr. Raman Singh
D:-Manohar Lal
Correct Answer:- Option-B
Question39:-The Scheme "'Project Arrow" is related to
A:-Rural Department
B:-Telephone Department
C:-Postal Department
D:-Forest Department
Correct Answer:- Option-C
Question40:-Kailash Satyarthi, the Nobel laureate belongs to which State?
A:-Andhra Pradesh
B:-Bihar
:-Madhya Pradesh
D:-Assam
Correct Answer:- Option-C
Question41:-When a resistance wire is stretched twice its lenght,its area of cross-section reduced by half.Then its resistance
A:-increases twice
increases 4 times
C:-reduces to half
D:-no change
Correct Answer:- Option-B
Question42:-In a p-type semiconductor,the majority carriers are
A:-electrons
holes

C:-neutrons
D:-protons
Correct Answer:- Option-B
Question43:-When a white light undergo dispersion through a triangular glass prism,the colour that deviates the most

D:-yellow
Correct Answer:- Option-A

Question44:-When an explosion occurs 6800m away from a man, then how long after its sound reaches the man(speed of
sound in air is 340 m/s)

4:- 25

8:-6.8 5

(:-3.4 5

0:-20 5

Correct Answer:- Option-D
Question45:-Time taken by sunlight to reach the earth is approaximately

A:-8¥2 minutes

B:-8% seconds

C:-8% hours

D:-8% light years

Correct Answer:- Option-A
Question46:-A transformer works on

A:-Self induction

B:-Joule's heating effect

C:-Maxwell's law

D:-Mutual induction

Correct Answer:- Option-D
Question47:-Unit of electric power

A:-Volt.

B:-Watt

C:-Ampere

D:-Newton

Correct Answer:- Option-B
Question48:-Einstein's mass-energy relation is