Answer:
Frequency
Explanation:
The intensity of light is increased by increasing the number of photon per second, and the number of photon per second is referred to as frequency. A photon the smallest unit of light. If the frequency is increased, the number of photons per second increases hence an increase in intensity.
Answer:
Yes,
NO,
Yes,
Yes,
No.
Explanation:
CASE: A wire is moved through the field of a magnet
As the wire is moved through the field of a magnetic the magnetic flux through the circuit loop changes,; therefore current is induced.
CASE: A magnet is held close to a wire
There needs to be relative motion between the wire and the magnet for the current to be induced; therefore, simply holding a magnet close to a wire will not induce current in the circuit.
CASE: A magnet is moved into a coil of wire
As the magnet is moved into a coil of wire, the magnetic flux through the coil changes, and therefore, the current is induced.
CASE: A magnet is moved out of coil of wire
Moving a magnet out of coil of wire also changes the magnetic flux through the coil; therefore, the current is induced.
CASE: A magnet rests in coil of wire
There needs to be relative motion between the coil of wire and the magnet for the current to be induced; therefore, a magnet resting in the coil of wire will no induce any current in the coil.
Based on the principle of equilibrium of forces:
- the tension T, in the strap is 10.2 N
- thehorizontal component of the reaction, Rx is 6.56 N
- thevertical component of the reactionary force, Ry is 7.84 N
<h3>What is tension?</h3>
Tension is a type of force that is transmitted through a flexible medium such as a cable, wire or string pulled tight by forces acting from opposite ends.
The tension in the strap is calculated as follows:
Taking sum of moments from the right end as equal to zero:
mg × l/2 = Tsinθ × l
T = mg/2sinθ
T = 1.60 × 9.8 / 2 sin 50°
T = 10.2 N
Calculating the components of the reac-
reac-tionary force:
- Horizontal component is Rx
- Vertical component is Ry
From Newton's third law:
Rx = Tcosθ
Rx = 10.2 × cos 50°
Rx = 6.56 N
Ry - Tsinθ = 0
Ry = Tsinθ
where;
T = mg/2sinθ
Ry = mgsinθ/2sinθ
Ry = mg/2
Ry = 7.84 N
Learn more about tension at: brainly.com/question/24994188
