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
C:-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
B:-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
B:-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
‏أعامايديم‎
‎B:-red
‎C:-indigo
‎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}
‏25ھ‎
‎8:-8.85
‎345
‎0:-20 5
Correct Answer:- Option-D
Question45:-Time taken by sunlight to reach the earth is approaximately
A:-8%: minutes
8:-8 seconds
C:-8% hours
D:-8%; light years
Correct Answer:- Option-A
Question46:-A transformer works भो
A:-Self induction
B:-Joule's heating effect
C:-Maxwell's law
D:-Mutual induction
Correct Answer:- Option-D
Question47:-Unit எ electric power
A:-Volt
B:-Watt
C:-Ampere
D:-Newton
Correct Answer:- Option-B
Question48:-Einstein's mass-energy relation is