In atomic physics, a state with l = 0 is called p state. True False The state wi

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Question
In atomic physics, a state with l = 0 is called p state.
Options
A. True
B. False

Correct Answer

False

Explanation

The state with l = 0 is called s state.

Materials and Components problems

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1. Assertion (A): Electronic and Ionic polarization in a polyatomic gas are independent of temperature.
Reason (R): The orientation polarization is independent of temperature.
Options
A. Both A and R are true and R is correct explanation of A
B. Both A and R are true but R is not correct explanation of A
C. A is true but R is false
D. A is false but R is true

2. Assertion (A): From the slope of the line in Figure, we can find permanent dipole moment of the molecules.
Reason (R): Total polarization of a polyatomic gas is given by P = N(a_e + a_i + ?²_p / 3kT)E.
Options
A. Both A and R are true and R is correct explanation of A
B. Both A and R are true but R is not correct explanation of A
C. A is true but R is false
D. A is false but R is true

3. Assertion (A): At a temperature of 1000 K, thermionic emission current is about 0.1 A/cm² of surface.
Reason (R): Thermionic emission current is given by I_th = SA₀ T² e^-Ew/kT.
Options
A. Both A and R are true and R is correct explanation of A
B. Both A and R are true but R is not correct explanation of A
C. A is true but R is false
D. A is false but R is true

6. Assertion (A): In a perfect capacitor, the current density is given by ? ?₀E₀?^'_rcos(?t + 90�), where ?_r^' is real part of dielectric constant.
Reason (R): In a perfect capacitor, dielectric losses are zero.
Options
A. Both A and R are true and R is correct explanation of A
B. Both A and R are true but R is not correct explanation of A
C. A is true but R is false
D. A is false but R is true

7. The attraction between the nucleus and valence electron of copper atom is
Options
A. zero
B. weak
C. strong
D. either zero or strong

8. The minority carrier life time and diffusion constant in a semiconducting material are 100 ?s and 100 cm²/s respectively. The diffusion length of carriers is
Options
A. 0.1 cm
B. 0.01 cm
C. 0.0141 cm
D. 1 cm

9. If a sample of germanium and a sample of silicon have the same impurity density and are kept at room temperature
Options
A. both will have equal value of resistivity
B. both will have equal negative resistivity
C. resistivity of germanium will be higher than that of silicon
D. resistivity of silicon will be higher than that of germanium

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