Q. Boundary line between Pakistan and Afghanistan
A) Radcliffe line
B) Durand line
C) maginot line
D) mcmahon line
Q. the potential energy associated with an electron in the orbit
A) increases with increase in radii of orbit
B) decreases with increase in radii of orbit
C) remains unchanged with the change in radii of the orbit
D) none of these
Q. The saturation current in diode valve depends upon
A) plate voltage
B) temperature of the filament
C) neither a nor b
D) both a and b
Q. ten years ago ram was thrice as old as shyam was but 10 years hence he will be only twice as old. what is ram's present age
A) 60
B) 65
C) 68
D) 70
Q. When a metal is heated it emits predominantly
A) electrons
B) protons  
C) positrons  
D) neutrons
Q. Thermonic emission was discovered by
A) Thomas Edison
B) lee de forest
C) fleming
D) Rutherford
Q. Plants that grow in seashores are called as :
A) Halophytes  
B) Hydrophytes  
C)  Xerophytes  
D) Psammophytes
Q. when a charged particle moves in a transverse magnetic field, it path of motion is
A) parabolic
B) circular
C) elliptical
D) linear
Q. The land of midnight sun is
A) Norway
B) Italy
C)  Russia
D) Belgium
Q. Superposition of two waves trains of amplitudes and nearly same frequiencies, moving in the same direction, results in the formation of beats. The maximum loudness heard at the waxing is 'n' times the loudness of each of the componet wave trains. the value of n is
A) 1
B) 2
C) 4
D) 8
Today Challenging Question
Q. If a boat is moving in upstream with velocity of 14 km/hr and goes downstream with a velocity of 40 km/hr, then what is the speed of the stream ?
A) 13 km/hr
B) 26 km/hr
C) 34 km/hr
D) none of these
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