Which of the following has the highest energy?
Which of the following has the highest energy?
A. gamma rays
B. X-rays
C. Ultra-violet radiation
D. radio waves
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On which disease did Robert Koch work?
On which disease did Robert Koch work?A. Tuberculosis
B. Cholera
C. Malaria
D. DiabetesThe light rays used for eliminating bacteria?
The light rays used for eliminating bacteria?A. X-rays
B. infrared rays
C. microwave radiation
D. ultra-violet radiationHow many moons does Neptune have?
How many moons does Neptune have?A. 63
B. 12
C. 19
D. 13Sun is moving around the centre of the galaxy at a velocity of _______ km/s?
Sun is moving around the centre of the galaxy at a velocity of _______ km/s?
A. 205
B. 210
C. 215
D. 220Clocks, which moves with the velocities comparable with the velocity of light, run ?
Clocks, which moves with the velocities comparable with the velocity of light, run ?A. fast
B. slow
C. equal to the velocity of light
D. with zero velocityYou have discovered a new celestial body. It has a thick atmosphere and it produces powerful cosmic winds and, when observed, the clouds obscure the body. You have determined it is this type of star.
You have discovered a new celestial body. It has a thick atmosphere and it produces powerful cosmic winds and, when observed, the clouds obscure the body. You have determined it is this type of star.
A. Wolf-Rayet star
B. Red supergiant
C. Stellar storm
D. Pulsar