Photo-electric cell is not used in: - Vidyadip

MCQ

Photo-electric cell is not used in:

A
Television.
B
Photography.
C
Reproduction of sound in cinema.
D
Automatic switching of street lightening circuits.

✓

Answer

Photography.

Explanation:

The exposure meter instead of photo electric cell is used in camera to know the correct time of exposure.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from Some Basic Concepts of Chemistry→Some Basic Concepts of Chemistry — all question types→Chemistry STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

The oxidation state of Cr in CrO₅, is:

Which of the following is an extensive property?

Lattice energy of an ionic compound depends upon

$\begin{array}{*{20}{c}}
{C{H_3}\,\,\,\,\,\,\,} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{C{H_3} - CH - C \equiv CH}
\end{array}\xrightarrow{{excess\,HBr}}$

The product of the above reaction is

In an octahedral structure, the pair of $d$ orbitals involved in ${d^2}s{p^3}$ hybridization is

Atomic number of an atom is equal to the __________.

An exothermic reaction is one which

For which of the following $Z_{eff}$ is equal to $Z$:-

$50\, mL$ of $2\,N$ acetic acid mixed with $10\, mL$ of $1\,N$ sodium acetate solution will have an approximate $pH$ of $(K_a = 10^{-5})$

The correct order of the oxidation states of nitrogen in $NO, N_2O, NO_2$ and $N_2O_3$ is