Q. what is the SI unit of Young modulus of elasticity
A) dyne/cm
B) newton/m
C) newton/m2
D) m2/s
Q. The land of midnight sun is
A) Norway
B) Italy
C)  Russia
D) Belgium
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 second law of thermodynamics introduces the concept of
A) Heat
B) Temperature
C) Entropy
D) Internal energy of the system
Q. the most suitable unit for expressing nuclear radius is
A) micron
B) nanometer
C) Fermi
D) angstrom
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. Annapurna, one of the highest mountains in the World is in
A) India  
B) Tibet  
C) Bhutan  
D) Nepal
Q. Worker W produces n units in 5 hours. Workers V and W, workers independently but at the same time, produce n units in 2 hours. how long would it take V alone to produce n units?
A) 1 hr 26 min
B) 2 hr 30 min
C) 3 hr 30 min
D) 3 hr 20 min
Q. Which of the following quantities is a vector
A) Area
B) Volume
C) Angle
D) Speed
Q. Plants that grow in seashores are called as :
A) Halophytes  
B) Hydrophytes  
C)  Xerophytes  
D) Psammophytes
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
18 members solved
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