Generate Quiz 68AF3F3393407

The angular velocity increases with the rotation angle in a given period of time.

Linear velocity (v) and angular velocity (w) are comparable.

The relationship between angular velocity and linear velocity can be expressed in two different ways:

v=rw or w=v/r.

The electrostatic field, also known as the electric field intensity, between a capacitor’s plates is how energy is stored in the capacitor.

Since light can behave as both a wave (having a wavelength and the ability to be diffracted) and a particle (containing energy packets hv), de Broglie reasoned that matter can also exhibit wave-particle duality. Additionally, it was reasoned that matter would have the same wavelength as light, specifically

λ = h / p

where, according to Einstein, p is the linear momentum.

P = mv

The formula for de Broglie wavelength:

λ=h/mv

h = 6.63×10-34 (Plank’s constant).

(1/1000) m=1g=10-3kg

v = 100 m/s

λ=h/mv

λ=6.63×10-34/ 10-3×100 = 6.63×10-33m

We’ll apply the following equation:

h = (1/2)gt2

where g is the acceleration caused by gravity (about 9.8 m/s² on the surface of the Earth), t is the time it took to reach the ground, and h is the vertical distance fallen (in this case, the height of the cliff = 490 m).

Because the projectile is thrown horizontally, we can determine that its initial vertical velocity (vy) is 0 m/s. Since there is no initial upward or downward motion, the initial velocity’s vertical component is zero.

There is a 490-meter vertical drop from the cliff’s height.

time (t):

(1/2) x 9.8 x t2 = 490

Both sides should be divided by (1/2) x 9.8.

490 / (1/2) x 9.8 is t2.

t2 = 100

Take both sides’ square roots:

t = -100

t = 10 s

The process of holography uses laser beams, the characteristics of intensity interference and diffraction, light recording, and illumination of the recording to produce three-dimensional images known as holograms.

A DC generator works on the electromagnetic induction principle, also known as Faraday’s law, which states that when the magnetic flux connecting a conductor varies, electromagnetic fields (EMFs) are created.

The displacement is 20 _ 10 = 10 m when an object moves 20 m east and 10 m west.

30 m is the distance (20 † 10).

This demonstrates unequivocally that distance is three times displacement.

In essence, the law of conservation of energy applied to thermodynamic systems is expressed by the first law of thermodynamics. Energy can only be transformed from one form to another; it cannot be created or destroyed in a system that is isolated, according to the first law of thermodynamics. The first law of thermodynamics is frequently stated mathematically as follows:

U = Q-W

Based on the information provided, half life is equivalent to five days.
15 days is equal to three half-lives.

After 15 days, the number of atoms is equal to ½ x ½ x ½ x the initial amount, meaning that ⅛ of the initial amount will remain.
Or we could say that after 15 days, ⅞ will decompose. In percentage, we can say that ⅞ x 100 = 87.5% atoms will be decayed.
Therefore, the probability of decay is 87.5%. The right choice is option B.

A combination of two or more resistors connected side by side is referred to as “parallel.” The total current in a parallel circuit is the sum of the currents flowing through all of the resistors, and the voltage across all of the resistors is the same.

Given:

T=4s

g = 9.8 m/s²

The formula

T=2π√l/g

Answer:

4 = 2×3.142×√l/√10

(√l) = (4×√10)2/(2×3.124)22.

l= approximately 4.

Dual nature, also known as wave particle dualism, refers to the particle and wave nature of electromagnetic waves and electrons. This wave-particle dualism states that a particle can simultaneously exhibit wave nature and a wave can also exhibit particle behavior. Both the particle and wave nature of a photon are influenced by its momentum.

The following formula provides the energy gained by a particle with charge q when it accelerates through a potential difference V:

U = qV

Option D is the right choice because it displays this.

For a falling body, the acceleration caused by gravity, or “g,” is positive; for a rising body, it is negative.

B is the right choice.

When a material’s coefficient is negative, it indicates that as the temperature rises, its resistance falls. The temperature coefficients of resistance of semiconductor materials (carbon, silicon, and germanium) are generally negative.

The magnetic field that surrounds any wire carrying current is B = µ0I/2πr. The equation above shows that the magnetic field is directly proportional to the current and inversely proportional to the distance. The magnetic field will decrease by a factor of two, or 1.5 T, when the distance from the wire doubles.

A is the right choice.

f = (W/E)

where E is the energy of a photon of light, W is the work function, and f is the minimum frequency.
W = 3.3 eV x 1.6 x 10^-19 J/eV = 5.28 x 10^-19 J since the work function is given as 3.3 eV, 1 eV = 1.6 x 10^-19 J.
Since the work function equals the minimum photon energy needed to expel an electron, we have:
5.28 x 10^-19 J = E = W
We can now solve for f by entering these values into the formula: f = (W/E) = (5.28 x 10^-19 J) / (6.63 x 10^-34 J s) = 7.97 x 10^14 Hz, or roughly 8 x 10^14 Hz.
Due to its numerical nature, it can

UV radiation is produced when gas molecules are exposed to alpha radiation.

Capacitors are designed to store charge.

Its winding is two-phase.