Dimorphic chloroplasts are present in
Options
(a) Sugarcane(C₄) (b) Cotton (c) Pea (d) Mango
Correct Answer:
Sugarcane(C₄)
Explanation:
Sugarcane is C₄ plant. The chloroplasts in C₄ leaves are dimorphic (Two morphologically) distinct types). […]
Which pigment of the plant takes part in light reaction of photosynthesis?
Options
(a) Xanthophyll (b) chlorophyll-a (c) carotene (d) phycoxanthin
Correct Answer:
chlorophyll-a
Explanation:
Chlorophyll a is present in all photosynthetic plants […]
Acceleration of a particle, executing SHM, at its mean position is
Options
(a) Infinity (b) Varies (c) Maximum (d) Zero
Correct Answer:
Zero
Explanation:
Acceleration = -ωy². At mean position y = 0 Acceleration […]
The velocity of a particle performing simple harmonic motion, when it passes through its mean position is
Options
(a) Infinity (b) Zero (c) Minimum (d) Maximum
Correct Answer:
Maximum
Explanation:
ν = ω […]
Amout of heat required to raise the temperature of a body through 1 K is called its
Options
(a) Water equivalent (b) Thermal capacity (c) Entropy (d) Specific heat
Correct Answer:
Thermal capacity
Two electrons are separated by a distance of 1Å. What is the coulomb force between them?
Options
(a) 2.3×10⁻⁸ N (b) 4.6×10⁻⁸ N (c) 1.5×10⁻⁸ N (d) None of these
Correct Answer:
2.3×10⁻⁸ […]
The process of adding impurities to the pure semiconductor is called
Options
(a) Drouping (b) Drooping (c) Doping (d) none of these
Correct Answer:
Doping
Explanation:
No explanation available. Be the first to […]
Energy of photon whose frequency is 10¹² MHz will be
Options
(a) 4.14×10³ KeV (b) 4.14×10² eV (c) 4.14×10³ MeV (d) 4.14×10³ eV
Correct Answer:
4.14×10³ eV
Explanation:
No explanation available. Be the […]
Watt hour meter measures
Options
(a) Current (b) Electric energy (c) Power (d) Voltage
Correct Answer:
Electric energy
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
The ratio of speed of an electron in ground state in Bohr’s first orbit of hydrogen atom to velocity of light in air (c ) is
Options
(a) e²/2ε₀hc (b) 2e²ε₀/hc (c) e³/2ε₀hc (d) […]
2017 Copyright Doctor Dreams Training Academy