Maths-

General

Easy

Question

# If ABCD is a Rhombus whose diagonals cut at the origin O then

## The correct answer is:

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Baryta water is:

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Which sequence of reactions shows correct chemical relation between sodium and its compounds?

Which sequence of reactions shows correct chemical relation between sodium and its compounds?

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Soda ash is chemically:

Soda ash is chemically:

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### V versus T curves at constant pressure and for an ideal gas are show in fig. which is correct

### V versus T curves at constant pressure and for an ideal gas are show in fig. which is correct

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### Phenol on treatment with diethyl sulphate in presence of gives

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### The characteristic group of secondary alcohol is:

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### Primary amine on treatment with yields:

### Primary amine on treatment with yields:

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### Alcoholic beverages contain

### Alcoholic beverages contain

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### Product is

### Product is

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### Ethyl iodide on treatment with dry will yield:

### Ethyl iodide on treatment with dry will yield:

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### If *X* is a square matrix of order 3 × 3 and is a scalar, then *adj* ( is equal to

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### Phenol forms a tribromo derivative “*X* ” is

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physics-

### The effective focal length of the lens combination shown in figure is - 60 cm The radii of curvature of the curved surfaces of the plano-convex lenses are 12 cm each and refractive index of the material of the lens is 1.5 The refractive index of the liquid is

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physics-General

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### A ray of ligth enters into a glass slab from air as shown .If refractive of glass slab is given by where A and B are constants and ‘t’ is the thickness of slab measured from the top surface Find the maximum depth travelled by ray in the slab Assume thickness of slab to be sufficiently large

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### The refraction index of an anisotropic medium varies as A ray of light is incident at the origin just along y-axis (shown in figure) Find the equation of ray in the medium

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physics-General