when a body immersed in water from spring balance and shows 100gm weight loss. what is the weight of the body in water?

2)what is the weight of the body in air?
3)what is the upthurst on the body?
4) what is the volume of the body?
give reason

1) The weight of the body in water can be calculated by subtracting the weight loss shown by the spring balance from the actual weight of the body. If the spring balance shows a weight loss of 100gm, then the weight of the body in water is the actual weight of the body minus 100gm.

2) The weight of the body in air is the same as the actual weight of the body. When a body is immersed in a fluid, such as water, the buoyant force acting on the body reduces the apparent weight of the body. However, when the body is in air, there is no significant buoyant force acting on it, so the weight measured by the spring balance is the actual weight of the body.

3) The upthrust on the body is the buoyant force exerted by the fluid (in this case, water) on the body. It is equal to the weight of the fluid displaced by the body. According to Archimedes' principle, the upthrust is equal to the weight of the fluid displaced by the body, which in turn is equal to the weight of the body in water. So, in this case, the upthrust on the body is 100gm.

4) The volume of the body can be determined by dividing the weight loss in water (100gm) by the density of water. The formula for density is density = mass/volume. Rearranging the formula, volume = mass/density. Assuming the density of water is known, dividing the weight loss of 100gm by the density will give us the volume of the body.

To answer these questions, we need to understand the concept of buoyancy and Archimedes' principle. Archimedes' principle states that the upward buoyant force exerted on a body immersed in a fluid is equal to the weight of the fluid displaced by the body.

1) To find the weight of the body in water, we need to calculate the buoyant force acting on it. The weight loss of 100 grams observed on the spring balance is equivalent to the buoyant force. Therefore, the weight of the body in water would also be 100 grams.

2) The weight of the body in air can be found by adding the weight loss in water to the actual weight of the body. Let's assume the actual weight of the body is W (in grams). So, the weight of the body in air would be W + 100 grams.

3) The buoyant force acting on a body immersed in a fluid is equal to the weight of the fluid displaced by the body. Therefore, the upthrust on the body (also known as buoyant force) would be 100 grams.

4) The volume of the body can be determined using Archimedes' principle. As per the principle, the weight of the fluid displaced by a body is equal to the weight loss observed on the spring balance. Since in this case the weight loss is 100 grams, the volume of the body is equivalent to the volume of water displaced by it.

Finding the exact volume of an irregularly shaped object like a body requires a densitometer or displacement method. By measuring how much water is displaced when the body is immersed, you can find the volume of the body.