Q. what is the SI unit of Young modulus of elasticity
A) dyne/cm
B) newton/m
C) newton/m2
D) m2/s
Q. How many liters of 27% alcohol solutions is to be added to 20 liters of 36% alcohol solution to obtain a 30% alcohol solution?
A) 30
B) 40
C) 60
D) 50
Q. the dimensional representation of plancks constant is same as that of
A) momentum
B) torque
C) gravitational constant
D) angular momentum
Q. The land of midnight sun is
A) Norway
B) Italy
C)  Russia
D) Belgium
Q. the saturation current in a diode can be increased by
A) lower plate potential
B) raising plate potential
C) increasing cathode temperature
D)  decreasing cathode temperature
Q. mass spectrograph determines
A) spectrum of light
B) charge of the ion
C) specific charge of the positive rays
D) specific charge of the cathode rays
Q. When a metal is heated it emits predominantly
A) electrons
B) protons  
C) positrons  
D) neutrons
Q. early vedic Aryans did not know the use of which of the following metals
A)  iron  
B) bronze  
C)  copper  
D)  gold
Q. Which of the following quantities is a vector
A) Area
B) Volume
C) Angle
D) Speed
Q. The highest peak in Australia is
A) Mt. Ossa  
B)  Mt. Woodroppe  
C)  Mt. Bruce  
D) Mt. Kosciuska
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
2 members solved
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