Toughest Science Quiz, Play if you can
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The virus is
nucleic acid and protein
protein and lipid
lipid and carbohydrate
According to the modern theory of nature of light, the light has
wave nature only
both wave and particle (dual) nature
neither particle nature nor wave nature
particle nature only
Which one of the following sets of elements was primarily responsible for the origin of life on the Earth?
Carbon, hydrogen, nitrogen
Hydrogen, oxygen, sodium
Carbon, hydrogen, potassium
Oxygen, calcium, phosphorus
Which of the following are true about speed of sound?
(i) Sound propagates through a medium at a finite speed.
(ii) The speed of sound decreases when we go from solid to gaseous state.
(iii) Speed of sound increases with increase in temp.
(i) & (ii)
(i) & (iii)
(i), (ii) & (iii)
In the human body, the appendix is attached to
the small intestine
the gall bladder
the large intestine
Magnetic resonance imaging is based on the phenomenon of
diamagnetism of human tissues
electron paramagnetic resonance
nuclear magnetic resonance
electron spin resonance
Which of the following copper alloys is used for the manufacture of springs and suspension filaments in electrical instruments?
When a sound wave goes from one medium to another, the quantity that remains unchanged is
Which of the following can be used for removal of stains of rust on clothes? 1. H2O2 2. Oxalic acid 3. Petrol 4. Alcohol
1 and 2
1, 2, 3 and 4
3 and 4
Which one of the following statements is not true about cosmic rays?
They originate from the sun.
They have very high frequency.
They are made of highly energetic charged particles.
They have very high wavelength.
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