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7. ABC is a right-angled triangle in which angle A = 90° and angle AB = angle AC. Find angle B and angle C.
15
Oct
7. ABC is a right-angled triangle in which angle A = 90° and angle AB = angle AC. Find angle B and angle C. 7. ABC is a right-angled triangle in which angle A = 90° and angle AB = angle AC. Find angle B and angle C. October 15, 2020 Category: Chapter 7 - [...]
6. ΔABC is an isosceles triangle in which AB = AC. Side BA is produced to D such that AD = AB (see Fig. 7.34). Show that angle BCD is a right angle.
15
Oct
6. ΔABC is an isosceles triangle in which AB = AC. Side BA is produced to D such that AD = AB (see Fig. 7.34). Show that angle BCD is a right angle. 6. ΔABC is an isosceles triangle in which AB = AC. Side BA is produced to D such that AD = AB [...]
5. ABC and DBC are two isosceles triangles on the same base BC (see Fig. 7.33). Show that angle ABD = angle ACD.
15
Oct
5. ABC and DBC are two isosceles triangles on the same base BC (see Fig. 7.33). Show that angle ABD = angle ACD. 5. ABC and DBC are two isosceles triangles on the same base BC (see Fig. 7.33). Show that angle ABD = angle ACD. October 15, 2020 Category: Chapter 7 - Triangles , [...]
4. ABC is a triangle in which altitudes BE and CF to sides AC and AB are equal (see Fig. 7.32). Show that (i) ΔABE ΔACF (ii) AB = AC, i.e., ABC is an isosceles triangle.
15
Oct
4. ABC is a triangle in which altitudes BE and CF to sides AC and AB are equal (see Fig. 7.32). Show that (i) ΔABE ΔACF (ii) AB = AC, i.e., ABC is an isosceles triangle. 4. ABC is a triangle in which altitudes BE and CF to sides AC and AB are equal (see [...]
The recoil speed of hydrogen atom after it emits a photon in going from n = 2 state to n = 1 state is nearly (Take R infinity = 1.1 * 10^7 m^-1 and h = 6.63 * 10^-34 Js)
15
Oct
The recoil speed of hydrogen atom after it emits a photon in going from n = 2 state to n = 1 state is nearly (Take R infinity = 1.1 * 10^7 m^-1 and h = 6.63 * 10^-34 Js) The recoil speed of hydrogen atom after it emits a photon in going from n [...]
An electron of energy 11.2 eV undergoes an inelastic collision with a hydrogen atom in its ground state. (Neglect recoiling of atom as mH >> me). Then in this case
15
Oct
An electron of energy 11.2 eV undergoes an inelastic collision with a hydrogen atom in its ground state. (Neglect recoiling of atom as mH >> me). Then in this case An electron of energy 11.2 eV undergoes an inelastic collision with a hydrogen atom in its ground state. (Neglect recoiling of atom as mH >> [...]
If the average life time of an excited state of hydrogen is of the order of 10^-8 s, then the number of revolutions an electron will make when it is in n = 2 state before coming to ground state will be
15
Oct
If the average life time of an excited state of hydrogen is of the order of 10^-8 s, then the number of revolutions an electron will make when it is in n = 2 state before coming to ground state will be If the average life time of an excited state of hydrogen is of [...]
A neutron having kinetic energy 5 eV is incident on a hydrogen atom in its ground state. The collision
15
Oct
A neutron having kinetic energy 5 eV is incident on a hydrogen atom in its ground state. The collision A neutron having kinetic energy 5 eV is incident on a hydrogen atom in its ground state. The collision October 15, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
In which of the following transitions will the wavelength be minimum?
15
Oct
In which of the following transitions will the wavelength be minimum? In which of the following transitions will the wavelength be minimum? October 15, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Electrons in a hydrogen-like atom (Z= 3) make transitions from fourth excited state to third excited state and from third to second excited state. The resulting radiations are incident on a metal plate
15
Oct
Electrons in a hydrogen-like atom (Z= 3) make transitions from fourth excited state to third excited state and from third to second excited state. The resulting radiations are incident on a metal plate An electron in a hydrogen atom makes a transition from first excited state to ground state. The equivalent current due to circulating [...]