UP2012

A dip needle vibrates in a vertical plane perpendicular to magnetic meridian. The time

A dip needle vibrates in a vertical plane perpendicular to magnetic meridian. The time of vibration is found to be…

The number of acidic protons in H₃PO₃ are

The number of acidic protons in H₃PO₃ are Options (a) 0 (b) 1 (c) 2 (d) 3 Correct Answer: 2Explanation:No…

Equal charge q each are placed at the vertices AQ and B of an equilateral triangle

Equal charge q each are placed at the vertices AQ and B of an equilateral triangle ABC of side a.…

Two bulbs when connected in parallel to a source take 60W each, the power consumed,

Two bulbs when connected in parallel to a source take 60W each, the power consumed, when they are connected in…

To draw the maximum current from a combination of cells, how should be the cells

To draw the maximum current from a combination of cells, how should be the cells be grouped? Options (a) Parallel…

When a current of (2.5±0.5) A flows through a wire, it develops a potential difference

When a current of (2.5±0.5) A flows through a wire, it develops a potential difference of (20±1) V, then the…

A thin equiconvex lens of refractive index 3/2 and radius of curvature 30 cm

A thin equiconvex lens of refractive index 3/2 and radius of curvature 30 cm is put in water (refractive index…