If a pendulum clock is brought on the Moon, then the period of oscillation of the pendulum clock:

Which of the following pairs is correctly matched?

Codes:

Consider the following statements:
$1$. The sickle cell anaemia is a genetic disease common in tropical and subtropical countries.
$2$. The sickle cell anaemia is due to mutation in the B-globin gene.
$3$. Due to sickle-shaped anaemia, the oxygen-carrying capacity of the haemoglobin decreases.
Which of the statements given above is/are correct?

Consider the following statements:

$1$. Ohm's law is not applicable at very low temperatures and very high temperatures.

$2$. Ohm's law is applicable to semiconductors.

$3$. Ohm's law is not applicable to electron tubes, discharge tubes, and electrolytes.

$4$. Conductance is the reciprocal of resistance and is measured in Siemens.

Which of the statements given above are correct?

Consider the following statements:

$1.$ The energy of the electrons in the orbit is quantized.
$2.$ Electrons revolve only in those orbits for which angular momentum is not an integral multiple$\frac{h}{2\mathrm{\pi }}$.
$3.$ The electrons don't revolve in different orbits around the nucleus.

$4.$ The electrons emit energy during revolution due to the presence of coulombic forces of attraction.

Which of the statements given above is/are correct about Bohr's model of an atom?

Consider the following statements:

1. Bryophytes are amphibians of the plant kingdom.

2. They are found in swamps, the areas where water and land meet.

Which of the statements given above is/are correct?

Which of the following statements about the commonly used automobile battery are true?

$1$. It is usually a lead-acid battery.
$2$. It has $6$ cells with a potential of $2$V each.
$3$. Its cells work as galvanic cells while discharging power.
$4$. Its cells work as electrolytic cells while recharging.

Select the correct answer using the codes given below.