Question
The ionization potential for second He electron is
|
(a) 13.6 eV |
(b) 27.2 eV |
(c) 54.4 eV |
(d) 100 eV |
✓
Answer
(c) 54.4 eV
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Which one of these is non-divisible
|
(a) Nucleus |
(b) Photon |
(c) Proton |
(d) Atom |
The variation of decay rate of two radioactive samples A and B with time is shown in Fig. Which of the following statements are true?
When a p-n diode is reverse biased, then
The diagram given show the variation of voltage and current in an AC circuit. The circuit contains.
A rocket is going away from the earth at a speed of 106 m/s If the wavelength of the light wave emitted by it be 5700 Å, what will be its Doppler's shift
|
(a) 200 Å |
(b) 19 Å |
(c) 20 Å |
(d) 0.2 Å |
The energy stored per unit volume of a space is called as:
In the depletion region of an unbiased P-N junction diode there are
| (a) Only electrons | (b) Only holes |
| (c) Both electrons and holes | (d) Only fixed ions |
In an intrinsic semiconductor, conductivity is:
In the experiment of potentiometer, at balance point, there is no current in the:
What name is given to a cylindrical coil of diameter less than its length?