FST 9
TEST SERIES (PHYSICS FST)

266570 What is the angular momentum of an electron in Bohr's hydrogen atom whose energy is -0.544 eV :

1 \(\frac{h}{\pi}\)
2 \(\frac{2 h}{\pi}\)
3 \(\frac{7 h}{2 \pi}\)
4 \(\frac{5 h}{2 \pi}\)
TEST SERIES (PHYSICS FST)

266571 Particle of mass ' M ' at rest breaks into two particles of masses \(\frac{M}{3}\) and \(\frac{2 M}{3}\). Find the ratio of their de-Broglie wavelengths:

1 \(1: 2\)
2 \(1: 1\)
3 \(2: 1\)
4 \(2: 3\)
TEST SERIES (PHYSICS FST)

266572 The electrical conductivity of a semiconductor increases when electromagnetic radiation of wavelength shorter than 2480 nm is incident on it. The band gap (in eV) for the semiconductor is:

1 0.5
2 0.7
3 1.1
4 2.5
TEST SERIES (PHYSICS FST)

266573 In Young's experiment with one source and two slits, if one of the slits is covered with black paper, then:

1 the fringes will be darker
2 the fringes wil be narrower
3 the fringes will be broader
4 no fringes will be obtained and the screen will have uniform illumination
TEST SERIES (PHYSICS FST)

266574 Given below are two statements: Statement I: Planck's constant and angular momentum have same dimensions. Statement II : Linear momentum and moment of force have same dimensions In the light of the above statements, choose the most appropriate answer from the options given below :

1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
4 Both Statement I and Statement II are correct.
TEST SERIES (PHYSICS FST)

266570 What is the angular momentum of an electron in Bohr's hydrogen atom whose energy is -0.544 eV :

1 \(\frac{h}{\pi}\)
2 \(\frac{2 h}{\pi}\)
3 \(\frac{7 h}{2 \pi}\)
4 \(\frac{5 h}{2 \pi}\)
TEST SERIES (PHYSICS FST)

266571 Particle of mass ' M ' at rest breaks into two particles of masses \(\frac{M}{3}\) and \(\frac{2 M}{3}\). Find the ratio of their de-Broglie wavelengths:

1 \(1: 2\)
2 \(1: 1\)
3 \(2: 1\)
4 \(2: 3\)
TEST SERIES (PHYSICS FST)

266572 The electrical conductivity of a semiconductor increases when electromagnetic radiation of wavelength shorter than 2480 nm is incident on it. The band gap (in eV) for the semiconductor is:

1 0.5
2 0.7
3 1.1
4 2.5
TEST SERIES (PHYSICS FST)

266573 In Young's experiment with one source and two slits, if one of the slits is covered with black paper, then:

1 the fringes will be darker
2 the fringes wil be narrower
3 the fringes will be broader
4 no fringes will be obtained and the screen will have uniform illumination
TEST SERIES (PHYSICS FST)

266574 Given below are two statements: Statement I: Planck's constant and angular momentum have same dimensions. Statement II : Linear momentum and moment of force have same dimensions In the light of the above statements, choose the most appropriate answer from the options given below :

1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
4 Both Statement I and Statement II are correct.
TEST SERIES (PHYSICS FST)

266570 What is the angular momentum of an electron in Bohr's hydrogen atom whose energy is -0.544 eV :

1 \(\frac{h}{\pi}\)
2 \(\frac{2 h}{\pi}\)
3 \(\frac{7 h}{2 \pi}\)
4 \(\frac{5 h}{2 \pi}\)
TEST SERIES (PHYSICS FST)

266571 Particle of mass ' M ' at rest breaks into two particles of masses \(\frac{M}{3}\) and \(\frac{2 M}{3}\). Find the ratio of their de-Broglie wavelengths:

1 \(1: 2\)
2 \(1: 1\)
3 \(2: 1\)
4 \(2: 3\)
TEST SERIES (PHYSICS FST)

266572 The electrical conductivity of a semiconductor increases when electromagnetic radiation of wavelength shorter than 2480 nm is incident on it. The band gap (in eV) for the semiconductor is:

1 0.5
2 0.7
3 1.1
4 2.5
TEST SERIES (PHYSICS FST)

266573 In Young's experiment with one source and two slits, if one of the slits is covered with black paper, then:

1 the fringes will be darker
2 the fringes wil be narrower
3 the fringes will be broader
4 no fringes will be obtained and the screen will have uniform illumination
TEST SERIES (PHYSICS FST)

266574 Given below are two statements: Statement I: Planck's constant and angular momentum have same dimensions. Statement II : Linear momentum and moment of force have same dimensions In the light of the above statements, choose the most appropriate answer from the options given below :

1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
4 Both Statement I and Statement II are correct.
TEST SERIES (PHYSICS FST)

266570 What is the angular momentum of an electron in Bohr's hydrogen atom whose energy is -0.544 eV :

1 \(\frac{h}{\pi}\)
2 \(\frac{2 h}{\pi}\)
3 \(\frac{7 h}{2 \pi}\)
4 \(\frac{5 h}{2 \pi}\)
TEST SERIES (PHYSICS FST)

266571 Particle of mass ' M ' at rest breaks into two particles of masses \(\frac{M}{3}\) and \(\frac{2 M}{3}\). Find the ratio of their de-Broglie wavelengths:

1 \(1: 2\)
2 \(1: 1\)
3 \(2: 1\)
4 \(2: 3\)
TEST SERIES (PHYSICS FST)

266572 The electrical conductivity of a semiconductor increases when electromagnetic radiation of wavelength shorter than 2480 nm is incident on it. The band gap (in eV) for the semiconductor is:

1 0.5
2 0.7
3 1.1
4 2.5
TEST SERIES (PHYSICS FST)

266573 In Young's experiment with one source and two slits, if one of the slits is covered with black paper, then:

1 the fringes will be darker
2 the fringes wil be narrower
3 the fringes will be broader
4 no fringes will be obtained and the screen will have uniform illumination
TEST SERIES (PHYSICS FST)

266574 Given below are two statements: Statement I: Planck's constant and angular momentum have same dimensions. Statement II : Linear momentum and moment of force have same dimensions In the light of the above statements, choose the most appropriate answer from the options given below :

1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
4 Both Statement I and Statement II are correct.
TEST SERIES (PHYSICS FST)

266570 What is the angular momentum of an electron in Bohr's hydrogen atom whose energy is -0.544 eV :

1 \(\frac{h}{\pi}\)
2 \(\frac{2 h}{\pi}\)
3 \(\frac{7 h}{2 \pi}\)
4 \(\frac{5 h}{2 \pi}\)
TEST SERIES (PHYSICS FST)

266571 Particle of mass ' M ' at rest breaks into two particles of masses \(\frac{M}{3}\) and \(\frac{2 M}{3}\). Find the ratio of their de-Broglie wavelengths:

1 \(1: 2\)
2 \(1: 1\)
3 \(2: 1\)
4 \(2: 3\)
TEST SERIES (PHYSICS FST)

266572 The electrical conductivity of a semiconductor increases when electromagnetic radiation of wavelength shorter than 2480 nm is incident on it. The band gap (in eV) for the semiconductor is:

1 0.5
2 0.7
3 1.1
4 2.5
TEST SERIES (PHYSICS FST)

266573 In Young's experiment with one source and two slits, if one of the slits is covered with black paper, then:

1 the fringes will be darker
2 the fringes wil be narrower
3 the fringes will be broader
4 no fringes will be obtained and the screen will have uniform illumination
TEST SERIES (PHYSICS FST)

266574 Given below are two statements: Statement I: Planck's constant and angular momentum have same dimensions. Statement II : Linear momentum and moment of force have same dimensions In the light of the above statements, choose the most appropriate answer from the options given below :

1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
4 Both Statement I and Statement II are correct.