Explanation

The parameters that Kepler’s Law of period relates to are "the semi-major axis and the time period."

Explanation

In a stationary wave, the particle velocity at a node is zero.

Nodes are points of zero displacement in a stationary wave, and therefore, they do not oscillate and have no velocity. 

Explanation

A magnetic bar has two poles: the North pole and the South pole.

These poles determine the direction of the magnetic field.

Explanation

During projectile motion, the horizontal component of velocity "remains constant."

Explanation

When a spherical ball rolls without slipping:

Total energy (E) = Kinetic energy (K) + Rotational energy (U)

K = (1/2)mv^2

U = (1/2)Iω^2 = (1/5)mv^2 (for a sphere)

E = K + U = (1/2)mv^2 + (1/5)mv^2 = (7/10)mv^2

Fraction of energy associated with rotation:

U/E = ((1/5)mv^2) / ((7/10)mv^2) = 2/7

Explanation

 A semiconductor has electrical conductivity between that of a conductor and an insulator, and silicon falls within this category

Explanation

Newton's Third Law of Motion states: "For every action, there is an equal and opposite reaction."

From this law, we can infer:

1. Statement 1: For every interaction, there is a pair of forces acting on the two interacting objects. (TRUE)
2. Statement 2: The magnitude of the force on the first object equals the magnitude of the force on the second object. (TRUE)
3. Statement 3: Forces always come in pairs - equal and opposite action-reaction force pairs. (TRUE)
4. Statement 4: Action and its reaction act on two same bodies. (FALSE - Action and reaction forces act on different bodies)
5. Statement 5: Action and its reaction act on two different bodies. (TRUE)

So, all statements except Statement 4 can be inferred from Newton's Third Law of Motion.

Explanation

Electrons are elementary particles, meaning they are not composed of smaller components.

Hence, they are considered one of the most refined and fundamental forms of matter.

Explanation

• The Second is the SI unit of time.
• It is defined as 9,192,631,770 periods of a caesium-133 atom's radiation.

Explanation

Note According to KMU MDCAT answer key the correct answer is 'C'

A black body is an ideal radiator that radiates energy unequally at all wavelengths.

The intensity of radiation emitted by a black body varies with wavelength, following Planck's law.

The spectral distribution of this radiation is characterized by a peak wavelength that shifts depending on the temperature of the black body, which is described by Wien's displacement law.