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The length of the compound microscope is 14 cm. The magnifying power for relaxed eye is 25. If the focal length of eye lens is 5 cm, then the object distance for objective lens will be
12
Sep
The length of the compound microscope is 14 cm. The magnifying power for relaxed eye is 25. If the focal length of eye lens is 5 cm, then the object distance for objective lens will be The length of the compound microscope is 14 cm. The magnifying power for relaxed eye is 25. If the [...]
A compound microscope has an eye piece of focal length 10 cm and an objective of focal length 4cm. Calculate the magnifcation, if an object is kept at a distance of 5 cm from the objective so that final image is formed at the least distance vision (20 cm)
12
Sep
A compound microscope has an eye piece of focal length 10 cm and an objective of focal length 4cm. Calculate the magnifcation, if an object is kept at a distance of 5 cm from the objective so that final image is formed at the least distance vision (20 cm) A compound microscope has an eye [...]
A stable nuclei C is formed from radioactive nuclei A and B with decay constants of lemda 1 and lemda 2, respectively. Initially, the number of nuclei of A is N0 and that of B is zero.
12
Sep
A stable nuclei C is formed from radioactive nuclei A and B with decay constants of lemda 1 and lemda 2, respectively. Initially, the number of nuclei of A is N0 and that of B is zero. A stable nuclei C is formed from radioactive nuclei A and B with decay constants of lemda 1 [...]
‘m1’ g of non-radioactive isotopes .zXA are mixed with ‘M2′ g of the radioactive isotopes .zXA’. How much will the specific activity decreases ? Half-life of .zXA’=T Take NA as Avagardo number.
12
Sep
‘m1’ g of non-radioactive isotopes .zXA are mixed with ‘M2′ g of the radioactive isotopes .zXA’. How much will the specific activity decreases ? Half-life of .zXA’=T Take NA as Avagardo number. 'm1' g of non-radioactive isotopes .zXA are mixed with 'M2' g of the radioactive isotopes .zXA'. How much will the specific activity decreases [...]
At a given instant, there are 25% undecayed radioactive nuclei in a sample. After 10 s, the number of undecayed nuclei reduces to 12.5%. Calculate (a) mean life of the nuclei and (b) the time in which the number of decayed nuclei will
12
Sep
At a given instant, there are 25% undecayed radioactive nuclei in a sample. After 10 s, the number of undecayed nuclei reduces to 12.5%. Calculate (a) mean life of the nuclei and (b) the time in which the number of decayed nuclei will At a given instant the number of undecayed nuclei reduces to 12.5%. [...]
The focal length of objective and eye lens of a astronomical telescope are respectively 2m and 5cm . Final image is formed at (i) least distance of distinct vision (ii) infinity. The magnifying power in both cases will be
12
Sep
The focal length of objective and eye lens of a astronomical telescope are respectively 2m and 5cm . Final image is formed at (i) least distance of distinct vision (ii) infinity. The magnifying power in both cases will be A simple telescope The light ray is incidence at angle of 60∘ on a prism of [...]
(a) Determine the number of carbon 14 C 6 atoms present for every gram of carbon 12 C 6 in a living organism. (b) Find (1) the decay constant and (2) the activity of this sample.
12
Sep
(a) Determine the number of carbon 14 C 6 atoms present for every gram of carbon 12 C 6 in a living organism. (b) Find (1) the decay constant and (2) the activity of this sample. (a) Determine the number of carbon 14 C 6 atoms present for every gram of carbon 12 C 6 [...]
A 50.0 g sample of carbon is taken from the pelvis bone of a skeleton and is found to have a 14 C decay rate of 200.0 decays min^-1. It is known that carbon from a living organism has a decay rate of decays/min/g
12
Sep
A 50.0 g sample of carbon is taken from the pelvis bone of a skeleton and is found to have a 14 C decay rate of 200.0 decays min^-1. It is known that carbon from a living organism has a decay rate of decays/min/g (b) the average-life and (c) the activity of 1.00 mg of [...]
A simple telescope, consisting of an objective of focal length 60 cm and a single eye lens of focal length 5 cm is focussed on a distant object in such a way that parallel rays comes out from the eye lens. If the object subtends an angle 2∘ at the objective, the angular width of the image
12
Sep
A simple telescope, consisting of an objective of focal length 60 cm and a single eye lens of focal length 5 cm is focussed on a distant object in such a way that parallel rays comes out from the eye lens. If the object subtends an angle 2∘ at the objective, the angular width of [...]
The total deviation of the incident ray when it emerges out of the prism is
12
Sep
The total deviation of the incident ray when it emerges out of the prism is The total deviation of the incident ray when it emerges out of the prism is September 12, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,