What happens with the force of gravitation between two objects when the mass of one object is doubled?
The force of gravitation is doubled
Therefore, we can write: \[F_{new} = 2 × F_{original}\] This shows that when the mass of one object is doubled, and other factors (the other mass and the distance) are kept constant, the force of gravitation between the two objects is also doubled. Therefore, the correct answer is The force of gravitation is doubled.
What is the colour of the light emitted by the Sun?
Lightning occur in the sky when two clouds:
With reference to street-lighting, how do sodium lamps differ from LED lamps?
1. Sodium lamps produce light in 360 degrees but it is not so in the case of LED lamps.
2. As street lights, sodium lamps have a longer life span than LED lamps.
3. The spectrum of visible light from sodium lamps is almost monochromatic while LED lamps offer significant colour advantages in street lighting.
Select the correct answer using the code given below.
Which one of the following is a reason why astronomical distances are measured in light-years?
In a pressure cooker, the temperature at which the food is cooked depends mainly upon which of the following?
1. Area of the hole in the lid
2. Temperature of the flame
3. Weight of the lid
Select the correct answer using the code given below.