MTG NEET Physics
A parallel beam of monochromatic light of wavelength 663 nm is incident on a totally reflecting plane mirror. The angle of incidence is 60 degree and the number of photons striking the mirror per second is (5 x (10^19)). Calculate the force exerted by the light beam on the mirror.
04
Sep
A parallel beam of monochromatic light of wavelength 663 nm is incident on a totally reflecting plane mirror. The angle of incidence is 60 degree and the number of photons striking the mirror per second is (5 x (10^19)). Calculate the force exerted by the light beam on the mirror. Angular momentum (L) and radius [...]
The work function for Al, K and Pt is 4.28 e V, 2.30 e V and 5.65 eV respectively. Their respective threshold frequencies would be
04
Sep
The work function for Al, K and Pt is 4.28 e V, 2.30 e V and 5.65 eV respectively. Their respective threshold frequencies would be 2.30 e V and 5.65 eV respectively. Their respective threshold frequencies would be K and Pt is 4.28 e V The work function for Al September 4, 2021 Category: Chapter [...]
The graphs show the variation of current I (y-axis) in two photocell A and B as a function of the applied voltage V (x-axis) when light of same frequency is incident on the cell. Which of the following is the correct conclusion drawn from the data?
04
Sep
The graphs show the variation of current I (y-axis) in two photocell A and B as a function of the applied voltage V (x-axis) when light of same frequency is incident on the cell. Which of the following is the correct conclusion drawn from the data? Angular momentum (L) and radius (r) of a hydrogen [...]
Decay constants of two radio-active samples A and B are 15 x and 3 x respectively. They have equal number of initial nuclei. The ratio of the number of nuclei left in A and B after a time 1/6x is .
07
Jun
Decay constants of two radio-active samples A and B are 15 x and 3 x respectively. They have equal number of initial nuclei. The ratio of the number of nuclei left in A and B after a time 1/6x is . Decay constants of two radio-active samples A and B are 15 x and 3 [...]
Eight grams of Cu66 undergoes radioactive decay and after 15 minutes only 1g remains. The half – life, in minutes, is then
07
Jun
Eight grams of Cu66 undergoes radioactive decay and after 15 minutes only 1g remains. The half – life, in minutes, is then Eight grams of Cu66 undergoes radioactive decay and after 15 minutes only 1g remains. The half - life in minutes is then June 7, 2021 Category: Chapter 13 - Nuclei , MTG NEET [...]
Obtain the amount of 60 27 Co necessary to provide a radioactive source of 8.0 mCi strength. The half-life 60 27Co of is 5.3 years.
07
Jun
Obtain the amount of 60 27 Co necessary to provide a radioactive source of 8.0 mCi strength. The half-life 60 27Co of is 5.3 years. Obtain the amount of 60 27 Co necessary to provide a radioactive source of 8.0 mCi strength. The half-life 60 27Co of is 5.3 years. June 7, 2021 Category: Chapter [...]
Two radioactive nuclei P and Q, in a given sample decay into a stable nucleus R. At time t=0, number of P species are 4 N0 and that of Q are N0. Half-life of P (for conversion to R) is 1 minute where as that of Q is 2 minutes. Initially there are no nuclei of R present in the sample. When number of nuclei of P and Q are equal, the number of nuclei of R present in the sample would be
07
Jun
Two radioactive nuclei P and Q, in a given sample decay into a stable nucleus R. At time t=0, number of P species are 4 N0 and that of Q are N0. Half-life of P (for conversion to R) is 1 minute where as that of Q is 2 minutes. Initially there are no nuclei [...]
If half-life of a radioactive atom is 2.3 days, then its decay constant would be:
07
Jun
If half-life of a radioactive atom is 2.3 days, then its decay constant would be: If half-life of a radioactive atom is 2.3 days then its decay constant would be: June 7, 2021 Category: Chapter 13 - Nuclei , MTG NEET Physics , Part 2 ,
The radioactive decay constant of 98 30 Sr is 7.88 X 10^10 s^-1. The activity of 15 mg of this isotope will be
07
Jun
The radioactive decay constant of 98 30 Sr is 7.88 X 10^10 s^-1. The activity of 15 mg of this isotope will be The radioactive decay constant of 98 30 Sr is 7.88 X 10^10 s^-1. The activity of 15 mg of this isotope will be June 7, 2021 Category: Chapter 13 - Nuclei , [...]
Two samples X and Y contain equal amount of radioactive substances. If 1/16 th of the sample X and 1/256th of the sample Y, remain after 8h, then the ratio of half periods of X and Y is
07
Jun
Two samples X and Y contain equal amount of radioactive substances. If 1/16 th of the sample X and 1/256th of the sample Y, remain after 8h, then the ratio of half periods of X and Y is remain after 8h then the ratio of half periods of X and Y is Two samples X [...]