V is **the image, image distance**, so this is image distance, and that's something we don't know in this problem. And u is the object distance, these are the letters that we usually use for mirrors, object distance.

**1f=(μ−1)(1R1−1R2)** Hint:Consider the lens as two surfaces and not one. The rays are going from denser to rarer medium or vice versa that means a change of medium is there.

D is **the minimum distance between the two point object under observation**. * d is the minimum distance between the two point objects for which they can be seen as separate objects through a microscope *Resolving power of a telescope : *Where D is aperture of objective of the telescope or diameter of the objective lens.

The Prism Formula is as follows, **The surface area of a prism = (2×BaseArea) +Lateral Surface Area**. The volume of a prism =Base Area× Height.

Derive Lens maker formula **f1=(n−1)(R11−R21)**. The lower half of the concave mirror's reflecting surface is covered with an opaque material.

V is **the image, image distance**, so this is image distance, and that's something we don't know in this problem. And u is the object distance, these are the letters that we usually use for mirrors, object distance.

**How to Find Angle of Refraction**

- What is refraction?
- Step 1: Find the refractive index of air (n
_{1}). - Step 2: Find the refractive index to glass (n
_{2}). - Step 3: Transform the equation of Snell's law so that the unknown value of the angle of refraction is on the left-side: sin r = (n
_{1}/n_{2})sin i.

It is represented as **n = c/v**, where c = velocity/speed of light of a certain wavelength in the air and v = velocity of light in any medium.

**θ _{crit} = sin^{-}^{1}(n_{r}/n_{i})** = sin

Magnification can also be related to the image distance and object distance; therefore it can also be written as: m = -v/u. Where **v is the image distance and u is the object distance**.

**There is no SI units for refractive index**, since it is a ratio of light velocity in material vs light velocity in vacuum, all velosity units have been cancelled out and the only thing left is the number that shows the ratio. Was this answer helpful?

Derive the following expression for the refraction at concave spherical surface: **μv−1u=μ−1R**.

Let's see how to use lens formula (**1/v-1/u= 1/f**) to locate images without having to draw ray diagrams.

Preparedness within the field of emergency management can best be defined as **a state of readiness to respond to a disaster, crisis or any other type of emergency situation**.

Java try block is used **to enclose the code that might throw an exception**. It must be used within the method. If an exception occurs at the particular statement in the try block, the rest of the block code will not execute.

**To solve a quadratic inequality, you follow these steps:**

- Move all the terms to one side of the inequality sign.
- Factor, if possible.
- Determine all zeros (roots, or solutions).
- Put the zeros in order on a number line.
- Create a sign line to show where the expression in the inequality is positive or negative.

**Here, we've evaluated five different types of capacity management tools:**

- Performance monitoring.
- Trending.
- Workload stacking.
- Simulation modeling.
- Analytical modeling.

Refractive error means that **the shape of your eye does not bend light correctly, resulting in a blurred image**. The main types of refractive errors are myopia (nearsightedness), hyperopia (farsightedness), presbyopia (loss of near vision with age), and astigmatism.

A systems analyst is **a person who uses analysis and design techniques to solve business problems using information technology**. Systems analysts may serve as change agents who identify the organizational improvements needed, design systems to implement those changes, and train and motivate others to use the systems.

**Albert Girard** also used the abbreviations 'sin', 'cos' and 'tan' for the trigonometric functions in his treatise.

I suggest you to focus more on inorganic because in mains, **the inorganic part of chemistry is comparatively much easier than the other two**. Inorganic: almost more than half of the inorganic question are going to be directly from ncert text…but you need to be thorough with the ncert text to get a decent score.

Dated : 03-Jun-2022

Category : Education