Q. the most suitable unit for expressing nuclear radius is
A) micron
B) nanometer
C) Fermi
D) angstrom
Q. Plants that grow in seashores are called as :
A) Halophytes  
B) Hydrophytes  
C)  Xerophytes  
D) Psammophytes
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. Boundary line between Pakistan and India
A)  Radcliffe line  
B) Durand line  
C) Maginot line  
D) McMahon line
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. Thermonic emission was discovered by
A) Thomas Edison
B) lee de forest
C) fleming
D) Rutherford
Q. When a metal is heated it emits predominantly
A) electrons
B) protons  
C) positrons  
D) neutrons
Q. Tea will cool most easily in :
A) glass cup  
B) metal cup
C) clay cup  
D) porcelain cup
Q. The highest waterfall of the world is in
B) Canada
C)  Venezuela
D)  Russia
Q. work function is generally expressed in
A) electron volt
B) joule
C) newton
D) gauss
Today Challenging Question
Q. The total CP of two watches is Rs900 One is sold out 20% profit and other at a loss of 25% There is no gain and loss in whole transaction The CP of the cost in whole transaction on which the shopkeeper losses is
A) 400
B) 450
C) 500
D) 540
11 members solved
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