KIITEE Mock Test - 6 - JEE MCQ

A plano convex lens is made refractive index 1.6. The radius of curvature of the curved surface is 60 cm. The focal length of the lens is

A glass slab is placed in the path of convergent light. The point of convergence of light

An n - type and p - silicon can be obtained by doping pure silicon with:

Continuous emission spectrum is also called

ABC is a right angled glass prism of refractive index 1.5. ∠ A , ∠ B and ∠ C are 60^o , 30^o and 90^o  respectively. A thin layer of liquid is on the face AB. For a ray of light which is incident normally on AC to be totally reflected at AB, the refractive index of the liquid on AB should be

The image formed by an objective of a compound microscope is

Rainbow is due to

The far point of a myopic eye is 1.5 m. To correct this defect of the eye, the power of lens is

The standard reduction potential at 298 K for the following half cell reaction are given below
Zn²⁺ + 2e^-  → Zn E⁰ = − 0.762 V
Cr⁺³ + 3 e^- → Cr E⁰  = − 0.740 V
2 H⁺ + 2 e^-  → H₂ E⁰  = − 0.0 V
Fe⁺³  + e^-  → Fe⁺²  E⁰  = − 0.770 V
Which one is the strongest reducing agent?

Faraday constant

The standard E⁰_red. values of A,B,C are 0.68V,- 2.54 V,-0.50V respectively.The order of their reducing power is

Which of the following reactions does not yield an alkyl halide?

Microcosmic salt is

On passing a current through KCl solution 19.5gm of potassium is deposited. If the same quantity of electricity is passed through a solution of aluminium chloride, the amount of Aluminium deposited is

Absolute ethyl alcohol can be converted to diethyl ether by heating it to 410 K in the presence of

tert-Butyl methyl ether on heating with HI of one molar concentration gives

Ether which is liquid at room temperature is

If cosθ+cos7θ+cos3θ+cos5θ=0, then θ=

If cos α, cos β, cos γ are the d.c. of a line, then value of sinα² + sin²β + sin²γ is

The angle between the two planes 3x-4y+5z=0 and 2x-y-2z=5 is

If √2 + √3 + i be one of the roots of a given equation f(x) = 0 with real coefficients, then the lowest degree of such an equation must be____

If | x + 1 | − | x | + 3 | x − 1 || x − 2 | = x + 2 , then solution for − 1 ≤ x ≤ 0 is ___

If the roots of x²+x+a=0 are greater than a, then

The equation of the sphere concentric with the sphere
x² + y² + z² - 4x - 6y - 8z - 5 = 0 and which passes through the point (0, 1, 0) is

The ratio in which the plane r̅.(i̅−2j̅+3k̅)=17 divides the line joining the points -2i̅+4j̅+7k̅ and 3i̅+5j̅+8k is̅