Explanation

 by using light of a shorter wavelength in a double-slit interference experiment, the widths of the fringes in the resulting diffraction pattern on the screen would increase.

Concept and Explanation:

Wavelength of light:

The width of the fringes in a double-slit interference pattern is directly related to the wavelength of the light used.

When light with a shorter wavelength, such as blue or violet light, is used, the fringes in the resulting diffraction pattern will be wider compared to using light with a longer wavelength, such as red light.

This phenomenon can be explained by the diffraction of light waves.

Shorter wavelengths diffract more around obstacles and result in broader interference patterns on the screen.

Explanation

If the difference in the amount won by K and M was Rs 5000 which of the following pair of students could also have won prizes that differed by rs 5000?

"  L and O " is the correct option according to CAA ANSWER KEY 2019

Explanation

Question

Two crates are stacked on top of each other on a horizontal floor, crate #1 is on the bottom and crate # 2 is on the top. Both crates have the same mass. 

Compared to the strength of the force necessary to push only Crate at a constant speed across the floor, the strength of the force necessary to push the stack at the same constant speed across the floor is greater because

(A) the normal force on the Crate is greater

(B) the coefficient of kinetic friction between the Crate and the floor is greater

(C) the coefficient of static friction between the Crate and the floor is greater

(D) the weight of the Crate  is greater

Explanation

To calculate the force exerted by the pavement on the tires, we can use the centripetal force formula:

Force (F) = (Mass (m) * Velocity squared (v^2)) / Radius (r)

Given:

Mass (m) = 1000 kg

Velocity (v) = 10 m/s

Radius (r) = 10 m

 Calculate the centripetal force (F):

Using the formula, F = (m * v^2) / r, we can substitute the given values to find the force:

F = (1000 kg * (10 m/s)^2) / 10 m

F = 100,000 N / 1.0 x 10^4 N

Explanation

6x + 9 is an expression

So, the expression 6x + 9 represents the sum of 6 times the value of x and 9.

The value of x can vary, but the expression remains the same structure.

For example, if x = 2, then the expression becomes:

6(2) + 9 = 12 + 9 = 21

If x = -1, then the expression becomes:

6(-1) + 9 = -6 + 9 = 3

Therefore, the expression 6x + 9 is a mathematical representation that combines a variable (x) with constants (6 and 9) using addition.

Explanation

the common objective of an MNC is to maximize stockholder wealth

It maximizes wealth on a global basis, as reflected by the stock price. 

 MNC Stands for Multinational Corporation 

Explanation

The oldest rocks under the oceans, on the sea floor, are no more than around 200 - 250 million years old 

while

The oldest rocks on the continents are in the range of 3.9 to 4.1 billion years old

Australia holds the oldest continental crust on Earth

Explanation

When a ship coming from the Atlantic Ocean crosses the Strait of Gibraltar, it first enters the Mediterranean Sea 

The Strait of Gibraltar is a narrow passage that connects the Atlantic Ocean to the Mediterranean Sea.

It separates Europe from Africa, with Spain to the north and Morocco to the south.