Answer:
True. The object's location is based off of the reference point, so by moving the reference point, you move the object's location.
Explanation:
Answer:
a) The wavelength of light is 6×10^-7 m.
b) The size of the central peak is 6×10^-3 m.
Explanation:
let:
α be the distance between the 1st and 2nd maxima
d = 0.4 mm be the grating slit space
X be the distance to the screen
a) α = λ×X/d
λ = α×d/X
= (0.3×10^-2)×(0.4×10^-3)/(2)
= 6×10^-7 m
Therefore, the wavelength of light is 6×10^-7 m.
b) the size of the central peak is given by:
D = 2×λ×X/d
= 2×(6×10^-7)×(2)/(0.4×10^-3)
= 6×10^-3 m
Therefore, the size of the central peak is 6×10^-3 m.
Answer:v=2 m/s
Explanation:
Given
Length of string L=1.2 m
mass of pendulum m=0.25 kg
maximum inclination with vertical \theta =34
vertical Rise of Pendulum from its mean position is given by
Conserving Energy at top and bottom point
Potential Energy of sphere is converted into kinetic energy of sphere
Answer: Gravitational force
Explanation:
The law of universal gravitation states that the force of attraction (F) between two bodies is directly proportional to their masses m1 and m2, and inversely proportional to the square of the distance (R) seperating them.
Thus, it is expressed mathematically as:
F = Gm1m2/R²
where,
- G is the gravitational constant with a value of 6.7 x 10^-11 Nm2/kg2
- F is the Gravitational force (unit is Newton)
- m1 and m2 are the masses of the two bodies (unit is kilograms)
- R is the distance seperating the two bodies. (unit is metres)
Thus, the formula f=G(m1m2)/R² help us find the gravitational force.
