Question Answers

Which of the following explanation is best for not placing hydrogen in either the group of alkali metals or halogens Which of the following explanation is best for not placing hydrogen in either the group of alkali metals or halogens November 9, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

P is the probability of finding the 1s electron of hydrogen atom in a spherical shell of infinitesimal thickness, dr, at a distance r from the nucleus. The volume of this shell is 4 πr^2 dr. The qualitative sketch of the dependence of P on r is at a distance r from the nucleus. The [...]

An object moving at a speed of 5m/s towards a concave mirror of focal length f=1 m is at a distance of 9m. The average speed of the image is An object moving at a speed of 5m/s towards a concave mirror of focal length f=1 m is at a distance of 9m. The average [...]

An object is placed in the front of convex mirror of radius of curvature 20cm its image is formed 8 cm behind the. find the distance of the object is An object is placed in the front of convex mirror of radius of curvature 20cm its image is formed 8 cm behind the. find the [...]

An object is kept at a distance of 60 cm from a concave mirror. For getting a magnification of 2/1 , focal length of the concave mirror required is : An object is kept at a distance of 60 cm from a concave mirror. For getting a magnification of 2/1 focal length of the concave [...]

A to A+ + e. E1 and A+ to A 2+ + e, E2. The energy required to pull out the two electrons are E1 and E2 respectively. The correct relationship between two energy would be A to A+ + e. E1 and A+ to A 2+ + e E2. The energy required to pull [...]

A 4.5 cm object is placed perpendicular to the axis of a convex mirror of focal length 15 cm at a distance of 12 cm. The size of the image is A 4.5 cm object is placed perpendicular to the axis of a convex mirror of focal length 15 cm at a distance of 12 [...]

Which of the following electrons should have the highest value of ionisation energy (for the same value of the principal quantum number. (a) s (b) p (c) d (d) f Which of the following electrons should have the highest value of ionisation energy (for the same value of the principal quantum number. (a) s (b) [...]

Consider an optical system consisting of a concave mirror M1 and convex mirror M2 of radii of curvatures 60 cm and 20 cm respectively. Two mirrors are separated by a distance of 40 cm. An object O is placed at a distance 80 cm from P. The final image is formed at a distance The [...]

Which one of the following elements has the highest ionisation energy (a) Na (b) Mg (c) C (d) F Which one of the following elements has the highest ionisation energy (a) Na (b) Mg (c) C (d) F November 9, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,