When the rate of flow of charge through a metallic conductor of non-uniform cross-section is uniform, then the quantity that remains constant along the conductor is
Options
(a) current density (b) electric field […]
Identify the wrong statement
Options
(a) Charge is a vector quantity (b) current is a scalar quantity (c) Charge can be quantised (d) Charge is additive in nature
Correct Answer:
Charge is a […]
In an L-C-R series resonant circuit, the capacitance is changed from C to 4C. For the same resonant frequency, the inductance should be changed from L to
Options
(a) 2L (b) L/2 (c) 4L […]
The approxiamate ratio of nuclear mass densities of ₇₉Au¹⁹⁷ and ₄₇ Ag¹⁰⁷ nuclei is
Options
(a) (197:107) (b) (47:79) (c) (79:47) (d) (1:1)
Correct Answer:
(1:1)
Explanation:
No explanation available. Be the first […]
The magnifying power of a convex lens of focal length 10 cm, when the image is formed at the near point is
Options
(a) 6 (b) 5.5 (c) 4 (d) 3.5
Correct Answer: […]
A particle of mass 1.96×10⁻¹⁵ kg is kept in equilibrium between two horizontal metal plates having potential difference of 400V seperated apart by 0.02m. Then the charge on the particle is (e=electronic charge)
Options […]
In Young’s double slit experiment, the locus of the point P lying in a plane with a constant path difference between two interfering waves is
Options
(a) a hyperbola (b) a straight line […]
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