The sum of angles in a triangle is 180 degrees. Therefore, the third angle = 180 - (40 + 70) = 70 degrees.

The sum of angles in a triangle is 180 degrees. Therefore, the third angle = 180 - (45 + 55) = 80 degrees.

A triangle with two equal angles is an isosceles triangle.

The sum of angles in a triangle is 180 degrees. Therefore, the third angle = 180 - (50 + 60) = 70 degrees.

The sum of angles in a triangle is 180 degrees. Therefore, the third angle = 180 - (50 + 60) = 70 degrees.

The sum of angles in a triangle is 180 degrees. Therefore, the third angle = 180 - 60 - 80 = 40 degrees.

Let the angles be 2x, 3x, and 4x. Then, 2x + 3x + 4x = 180, so 9x = 180, x = 20. The largest angle is 4x = 80 degrees.

According to the triangle inequality theorem, the sum of the lengths of any two sides must be greater than the length of the third side. Therefore, the maximum length of the third side can be 16 cm (7 + 10 - 1). Hence, the answer is 17 cm.

According to the triangle inequality theorem, the length of the third side must be less than the sum of the other two sides and greater than the difference of the two sides. Therefore, the range is 3 cm to 17 cm.

According to the triangle inequality theorem, the length of the third side must be less than the sum and greater than the difference of the other two sides. Therefore, the third side must be greater than 3 cm and less than 17 cm.

The maximum length of the third side = sum of the other two sides - 1 = 7 + 10 - 1 = 16 cm.

The path difference for the first order maximum is given by d sin θ = λ, hence the path difference is λ sin θ.

Increasing the distance between the slits (d) decreases the fringe width, which in turn reduces the number of visible fringes on the screen.

Increasing the distance between the slits (d) decreases the fringe separation, as fringe separation is inversely proportional to d.

Fringe spacing (β) is directly proportional to the distance to the screen (D). If D is doubled, the fringe spacing also doubles.

At the first minimum, the intensity is 0 due to destructive interference.

At the first minimum, the intensity is 0 due to destructive interference.

Increasing the intensity from one slit increases the overall intensity of the interference pattern.

In uniform circular motion, speed remains constant while velocity and acceleration change direction.

In a uniform electric field, the electric potential changes linearly with distance.

Equipotential surfaces are always perpendicular to electric field lines.

In a uniform electric field, the equipotential surfaces are parallel planes.

E = V/d = 10 V / 2 m = 5 N/C.

The potential difference is directly proportional to both the distance between the points and the magnitude of the electric field.

In a uniform electric field, the potential difference (V) between two points separated by a distance (d) is given by V = E × d, where E is the electric field strength.

In a uniform electric field, the potential difference (V) between two points is given by V = Ed, where d is the distance between the points.

The radius of the circular path is directly proportional to the speed of the charged particle in a uniform magnetic field.

The magnetic force is maximum when the angle between the velocity and the magnetic field is 90 degrees, as sin(90°) = 1.

The magnetic force is maximum when the angle between the conductor and the magnetic field is 90 degrees, as sin(90°) = 1.

Sound requires a medium (solid, liquid, or gas) to travel; in a vacuum, there are no particles to transmit sound waves.