In which one of the following expenditure of energy is required
In which one of the following expenditure of energy is required? Options (a) Osmosis (b) Diffusion (c) Active transport (d)…
4 years ago
WB2014
An electron in a circular orbit of radius 0.05 nm performs 10¹⁶ rev/s. The magnetic
An electron in a circular orbit of radius 0.05 nm performs 10¹⁶ rev/s. The magnetic moment due to this rotation…
6 years ago
A proton of mass m and charge q is moving in a plane with kinetic energy E. If there exists
A proton of mass m and charge q is moving in a plane with kinetic energy E. If there exists…
6 years ago
The intensity of magnetisation of a bar magnet is 5×10⁴ Am⁻¹. The magnetic length
The intensity of magnetisation of a bar magnet is 5x10⁴ Am⁻¹. The magnetic length and the area if cross- section…
6 years ago
The intermediate image formed by the objective of a compound microscope is
The intermediate image formed by the objective of a compound microscope is Options (a) real, inverted and magnified (b) real,…
6 years ago
A luminous object is seperated from a screen by distance d. A convex lens
A luminous object is seperated from a screen by distance d. A convex lens is placed between the object and…
6 years ago
For the radioactive nuclei that undergo either α or β decay, which one
For the radioactive nuclei that undergo either α or β decay, which one of the following cannot occur? Options (a)…
6 years ago
Chlorophyll molecules are located in the
Chlorophyll molecules are located in the Options (a) thylakoid membrane (b) thylakoid lumen (c) stroma (d) inner chloroplast membrane Correct…
6 years ago
Three capacitors 3μF,6μF and 6μF are connected in series to a source of 120V.
Three capacitors 3μF, 6μF and 6μF are connected in series to a source of 120V. The potential difference in volt,…
6 years ago
Consider two concentric spherical metal shells of radii r₁ and r₂( r₂>r₁). If the outer
Consider two concentric spherical metal shells of radii r₁ and r₂( r₂>r₁). If the outer shell has a charge q…
6 years ago