Which of the following type of plastids does not contain stored food material?
Options
(a) Amyloplasts (b) Chromoplasts (c) Elaioplasts (d) Aleuroplasts
Correct Answer:
Chromoplasts
Explanation:
Type of plastids does not contain stored […]
Two metal rods 1 and 2 of same lengths have same temperature difference between their ends. Their thermal conductivities are K₁ and K₂ and cross sectional areas A₁ and A₂, respectively. If the rate of […]
A fluid is in streamline flow across a horizontal pipe of variable area of cross section. For this which of the following statements is correct?
Options
(a) The velocity is minimum at the narrowest […]
A particle of mass m oscillates along x-axis according to equation x = a sin ωt. The nature of the graph between momentum and displacement of a particle is
Options
(a) straight line passing […]
An electromagnetic wave of frequency v = 3.0 MHz passes from vacuum into a dielectric medium with relative permittivity ε = 4.0. Then
Options
(a) wavelength is doubled and frequency is unchanged (b) […]
In a vessel, the gas is at a pressure P. If the mass of all the molecules is halved and their speed is doubled, then the resultant pressure will be
Options
(a) 4 […]
A long straight wire carries a certain current and produces a magnetic field of 2 x 10⁻⁴ weber/m² at a perpendicular distance of 5 cm from the wire. An electron situated at 5 cm from […]
The reddish appearance of the sun at sunrise and sunset is due to
Options
(a) the colour of the sky (b) the scattering of light (c) the polarisation of light (d) the colour […]
A parallel beam of light of wavelength λ is incident normally on a narrow slit. A diffraction pattern is formed on a screen placed perpendicular to the direction of the incident beam. At the second […]
In Young’s double slit experiment the distance between the slits and the screen is doubled. The separation between the slits is reduces to half. As a result the fringe width
Options
(a) is […]
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