Question Answers

Among the alkali metals cesium is the most reactive because (a) Its incomplete shell is nearest to the nucleus Among the alkali metals cesium is the most reactive because (a) Its incomplete shell is nearest to the nucleus November 15, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

In the circuit shown, the reading of the Ammeter is doubled after the switch is closed. Each resistor has a resistance =1Ω and the ideal cell has an e.m.f. = 10 V. Then the ammeter has a resistance equal to In the circuit shown the reading of the Ammeter is doubled after the switch is [...]

Excess of Na+ ions in our system causes (a) High B.P. (b) Low B.P. (c) Diabetes (d) Anaemia Excess of Na+ ions in our system causes (a) High B.P. (b) Low B.P. (c) Diabetes (d) Anaemia November 15, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

The alum used for purifying water is (a) Ferric alum (b) Chrome alum (c) Potash alum (d) Ammonium alum The alum used for purifying water is (a) Ferric alum (b) Chrome alum (c) Potash alum (d) Ammonium alum November 15, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Figure shows a balanced wheatstone bridge. Figure shows a balanced wheatstone bridge. November 15, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

A voltmeter reads the potential difference across the terminals of an old battery as 1.40 V , while a potentiometer reads its voltage to be 1.55 V. The voltmeter resistance is 280 ohm. A voltmeter reads the potential difference across the terminals of an old battery as 1.40 V while a potentiometer reads its voltage [...]

The critical angle for light going from medium X into medium Y is θ. The speed of light in medium X is v. The speed of light in medium Y is The critical angle for light going from medium X into medium Y is θ. The speed of light in medium X is v. The [...]

A spherical mirror forms an image of magnification 3. The object distance, if focal length of mirror is 24cm, may be A spherical mirror forms an image of magnification 3. The object distance if focal length of mirror is 24cm may be November 15, 2020 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter [...]

An equiconvex lens is cut into two halves along (i)XOX′ and (ii)YOY′ as shown in the figure. Let f, f′ f” be the focal lengths of the complete lens, of each half in case (i), and of each half in case (ii), respectively, Choose the correct statement from the following An equiconvex lens is cut [...]

Two convex lenses placed in contact form the image of a distant object at P. If the lens B is moved to the right, the image will the image will Two convex lenses placed in contact form the image of a distant object at P. If the lens B is moved to the right November [...]