Which of the following is the correct balanced reaction of photosynthesis?
a) 6CO2+6O2-------> C6H12O6+6O2+ 12H2O
b) 6CO2+6H2O-----> C6H12O6+6O2+6H2O
c) 6CO2+6O2-------> C6H12O6+12O2+6H2O
d) 6CO2+12H2O-----> C6H12O6+6O2+ 6H2O
Explanation: The water and carbon dioxide are reactants while glucose and oxygen are products
The visible
product of photosynthesis……
a) fructose
b) starch
c) cellulose
d) glucose
Light is a kind of energy which travels in the form of ………
a) transverse waves
b) electromagnetic waves
c) transverse waves
d) biological waves
Explanation: electromagnetic radiation consists of waves of the electromagnetic field, which propagate through space and carry momentum and electromagnetic radiant energy.
Light act as a beam of particles of different frequencies called…….
a) protons
b) electrons
c) photons
d) neutrons
Explanation: A photon is an elementary particle that is a quantum of the electromagnetic field, including electromagnetic radiation such as light and radio waves, and the force carrier for the electromagnetic force.
Energy content of photons is ……to the wavelength.
a) direct proportional
b) inverse proportional
c) both a and b
d) independent of wavelength
Explanation: shorter wavelengths are more energetic
Our eyes are sensitive to only small portion of this solar radiation i.e. visible light that ranges from about…….nm to …….nm in visible spectrum.
a) 200-700
b) 300-680
c) 390-760
d) 400-860
