JEE Mains Physics 2002-2019 Solved Video Solutions
Binding energy per nucleon versus mass number curve for nuclei is shown in figure. W, X, Y and Z are four nuclei indicated on the curve. The process that would release energy is
15
Sep
Binding energy per nucleon versus mass number curve for nuclei is shown in figure. W, X, Y and Z are four nuclei indicated on the curve. The process that would release energy is Binding energy per nucleon versus mass number curve for nuclei is shown in figure. W X Y and Z are four nuclei [...]
A particle of mass M at rest decays into two particles of masses m1 and m2 having non-zero velocities. The ratio of the de-Broglie wavelengths of the particles λ1/λ2 is
15
Sep
A particle of mass M at rest decays into two particles of masses m1 and m2 having non-zero velocities. The ratio of the de-Broglie wavelengths of the particles λ1/λ2 is A particle of mass M at rest decays into two particles of masses m1 and m2 having non-zero velocities. The ratio of the de-Broglie wavelengths [...]
The half-life period of a radioactive element x is same as the mean life time of another radioactive element. Initially both of them have the same number of atoms. Then
15
Sep
The half-life period of a radioactive element x is same as the mean life time of another radioactive element. Initially both of them have the same number of atoms. Then The half-life period of a radioactive element x is same as the mean life time of another radioactive element. Initially both of them have the [...]
The half-life o f 131I is 8 days. Given a sample of 131I at time t=0, we can assert that
15
Sep
The half-life o f 131I is 8 days. Given a sample of 131I at time t=0, we can assert that The half-life o f 131I is 8 days. Given a sample of 131I at time t=0 we can assert that September 15, 2021 Category: Chapter 18 - Atoms and Nuclei , JEE Mains Physics 2002-2019 [...]
The electrical conductivity of a semiconductor increases when electro magnetic radiation of wavelength shorter than 2480nm, is incident on it. The band gap in (eV) for the semiconductor is:
15
Sep
The electrical conductivity of a semiconductor increases when electro magnetic radiation of wavelength shorter than 2480nm, is incident on it. The band gap in (eV) for the semiconductor is: is incident on it. The band gap in (eV) for the semiconductor is: The electrical conductivity of a semiconductor increases when electro magnetic radiation of wavelength [...]
The circuit shown in the figure contains two diodes each with a forward resistance of 50 Ω and with infinite backward resistance. If the battery voltage is 6 V, the current through the 100 Ω resistance (in ampere) is
15
Sep
The circuit shown in the figure contains two diodes each with a forward resistance of 50 Ω and with infinite backward resistance. If the battery voltage is 6 V, the current through the 100 Ω resistance (in ampere) is The circuit shown in the figure contains two diodes each with a forward resistance of 50 [...]
he dominant mechanisms for motion of charge carriers in forward and reverse biased silicon p-n junctions are:
15
Sep
he dominant mechanisms for motion of charge carriers in forward and reverse biased silicon p-n junctions are: he dominant mechanisms for motion of charge carriers in forward and reverse biased silicon p-n junctions are: September 15, 2021 Category: Chapter 18 - Atoms and Nuclei , JEE Mains Physics 2002-2019 Solved Video Solutions ,
Which of the following statement is not true ? (a) The resistance of intrinsic semiconductors decreases with increase of temperature.
15
Sep
Which of the following statement is not true ? (a) The resistance of intrinsic semiconductors decreases with increase of temperature. Which of the following statement is not true ? (a) The resistance of intrinsic semiconductors decreases with increase of temperature. September 15, 2021 Category: Chapter 18 - Atoms and Nuclei , JEE Mains Physics 2002-2019 [...]
The Kα X-ray emission line of tungsten occurs at λ=0.021nm. The energy difference between K and L levels in this atoms is about
15
Sep
The Kα X-ray emission line of tungsten occurs at λ=0.021nm. The energy difference between K and L levels in this atoms is about The Kα X-ray emission line of tungsten occurs at λ=0.021nm. The energy difference between K and L levels in this atoms is about September 15, 2021 Category: Chapter 18 - Atoms and [...]
Masses of two isobars 29Cu64 and 30Zn64 are 63.9298 u and 63.9292 u respectively. It can be concluded from these data that
15
Sep
Masses of two isobars 29Cu64 and 30Zn64 are 63.9298 u and 63.9292 u respectively. It can be concluded from these data that Masses of two isobars 29Cu64 and 30Zn64 are 63.9298 u and 63.9292 u respectively. It can be concluded from these data that September 15, 2021 Category: Chapter 18 - Atoms and Nuclei , [...]