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Four different independent waves are represented by with which two waves interference is possible
12
Sep
Four different independent waves are represented by with which two waves interference is possible Four different independent waves are represented by with which two waves interference is possible September 12, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
The ratio of intenties of two waves is 9 : 1. They are producing interference. The ratio of maximum and minimum intensities will be
12
Sep
The ratio of intenties of two waves is 9 : 1. They are producing interference. The ratio of maximum and minimum intensities will be The ratio of intenties of two waves is 9 : 1. They are producing interference. The ratio of maximum and minimum intensities will be September 12, 2020 Category: Uncategorised (JEE Advanced [...]
The mean lives of a radioactive substance are 1620 years and 405 years for alpha emission and beta emission, respectively. Find out the time during which three-fourth of a sample will
12
Sep
The mean lives of a radioactive substance are 1620 years and 405 years for alpha emission and beta emission, respectively. Find out the time during which three-fourth of a sample will respectively. Find out the time during which three-fourth of a sample will The mean lives of a radioactive substance are 1620 years and 405 [...]
Nuclei of radioactive element A are being produced at a constant rate alpha. The element has a decay constant lemda. At time t = 0, there are N0 nuclei of the element. (a) Calculate the number N of nuclei of A
12
Sep
Nuclei of radioactive element A are being produced at a constant rate alpha. The element has a decay constant lemda. At time t = 0, there are N0 nuclei of the element. (a) Calculate the number N of nuclei of A Nuclei of radioactive element A are being produced at a constant rate alpha. The [...]
If the focal length of the objective lens and the eye lens are 4 mm and 25 mm respectively in a compound microscop[e. The length of the tube is 16 cm. Find its magnifying power for relaxed eye position
12
Sep
If the focal length of the objective lens and the eye lens are 4 mm and 25 mm respectively in a compound microscop[e. The length of the tube is 16 cm. Find its magnifying power for relaxed eye position A simple telescope The light ray is incidence at angle of 60∘ on a prism of [...]
A factory produces a radio substance A at a constant rate R which decays with a decay constant lemda to form a stable substance. Find (a) the number of nuclei of A and (b) number of nuclei of B, at any time t assuming
12
Sep
A factory produces a radio substance A at a constant rate R which decays with a decay constant lemda to form a stable substance. Find (a) the number of nuclei of A and (b) number of nuclei of B, at any time t assuming A factory produces a radio substance A at a constant rate [...]
A radioactive nucleus can decay by two different processes. The half-life for the first process is t1 and that for the second process is t2. Show that the effective half-life t of the nucleus is given by
12
Sep
A radioactive nucleus can decay by two different processes. The half-life for the first process is t1 and that for the second process is t2. Show that the effective half-life t of the nucleus is given by The normal activity of living carbon-containing matter is found to be about 15 decays per minute for every [...]
A telescope has an objective lens 10 cm diameter and is situated at a distance of one km from two objects. The minimum distance between these two objects, which can be resolved by the telescope, when the mean wave length of light is 5000 A, is of the order of
12
Sep
A telescope has an objective lens 10 cm diameter and is situated at a distance of one km from two objects. The minimum distance between these two objects, which can be resolved by the telescope, when the mean wave length of light is 5000 A, is of the order of A telescope has an objective [...]
Suppose the daughter nucleus in a nuclear decay is itself radioactive. Let lemda p and lemda d be the decay constants of the parent and the daughter nuclei. Also, let Np and Nd be the number of parent and daughter nuclei at time t. Find the condition for which the number of daughter
12
Sep
Suppose the daughter nucleus in a nuclear decay is itself radioactive. Let lemda p and lemda d be the decay constants of the parent and the daughter nuclei. Also, let Np and Nd be the number of parent and daughter nuclei at time t. Find the condition for which the number of daughter let Np [...]
The focal length of an objective of a telescope is 3 metre and diameter 15 cm . Assuming for a normal eye, the diameter of the pupil is 3 mm for its complete use, the focal length of eye piece must be
12
Sep
The focal length of an objective of a telescope is 3 metre and diameter 15 cm . Assuming for a normal eye, the diameter of the pupil is 3 mm for its complete use, the focal length of eye piece must be the diameter of the pupil is 3 mm for its complete use The [...]