NEET Online Test, NEET Full Online Test Series, NEET Mock Test

An explosion breaks a rock into three parts in a horizontal plane. Two of them go off at right angles to each other. The first part of mass 1 kg moves with a speed of 12 ms–¹ and the second part of mass 2 kg moves with 8 ms–¹ speed. If the third part flies off with 4 ms–¹ speed, then its mass is

A body of mass ‘m’ taken from the earth’s surface to the height equal to twice the radius (R) of the earth. The change in potential energy of body will be

Infinite number of bodies, each of mass 2 kg is situated on x-axis at distance 1 m, 2 m, 4 m, 8 m, respectively, from the origin. The resulting gravitational potential due to this system at the origin will be

The following four wires are made of the same material. Which of these will have the largest extension when the same tension is applied?

The wettability of a surface by a liquid depends primarily on

A piece of iron is heated in a flame. It first becomes dull red then becomes reddish yellow and finally turns to white hot. The correct explanation for the above observation is possible by using

A wave travelling in the +ve x-direction having displacement along y-direction as 1 m, wavelength 2πm and frequency of 1/π Hz is represented by

If we study the vibration of a pipe open at both ends, then the following statement is not true

A source of unknown frequency gives 4 beats/s, when sounded with a source of known frequency 250 Hz. The second harmonic of the source of unknown frequency gives five beats per second, when sounded with a source of frequency 513 Hz. The unknown frequency is

A wire of resistance 4Ω is stretched to twice its original length. The resistance of stretched wire would be

The internal resistance of a 2.1 V cell which gives a current of 0.2 A through a resistance of 10 Ω is

The resistances of the four arms P, Q, R and S in a Wheatstone’s bridge are 10 ohm, 30 ohm, 30 ohm and 90 ohm, respectively. The e.m.f. and internal resistance of the cell are 7 volt and 5 ohm respectively. If the galvanometer resistance is 50 ohm, the current drawn from the cell will be

A current loop in a magnetic field

A wire loop is rotated in a magnetic field. The frequency of change of direction of the induced e.m.f. is

A coil of self-inductance L is connected in series with a bulb B and an AC source.
Brightness of the bulb decreases when

The condition under which a microwave oven heats up a food item containing water molecules most efficiently is

Ratio of longest wavelengths corresponding to Lyman and Balmer series in hydrogen spectrum is

The half life of a radioactive isotope ‘X’ is 20 years. It decays to another element ‘Y’ which is stable. The two elements ‘X’ and ‘Y’ were found to be in the ratio 1 : 7 in a sample of a given rock. The age of the rock is estimated to be

A certain mass of Hydrogen is changed to Helium by the process of fusion. The mass defect in fusion reaction is 0.02866 u. The energy liberated per u is
(given 1 u = 931 MeV)

For a normal eye, the cornea of eye provides a converging power of 40 D and the least converging power of the eye lens behind the cornea is 20 D. Using this information, the distance between the retina and the cornea – eye lens can be estimated to be

The value of Planck’s constant is 6.63 × 10–³⁴ Js. The speed of light is 3 × 10¹⁷ nm s–1.
Which value is closest to the wavelength in nanometer of a quantum of light with
frequency of 6 × 10¹⁵ s –¹?

What is the maximum numbers of electrons that can be associated with the following set of quantum numbers?
n = 3, l = 1 and m = –1

A hydrogen gas electrode is made by dipping platinum wire in a solution of HCl of pH = 10 and by passing hydrogen gas around the platinum wire at one atm pressure. The oxidation potential of electrode would be

A reaction having equal energies of activation for forward and reverse reactions has

At 25°C molar conductance of 0.1 molar aqueous solution of ammonium hydroxide is 9.54 ohm–¹ cm² mol–¹ and at infinite dilution its molar conductance is 238 ohm–¹ cm² mol–¹. The degree of ionisation of ammonium hydroxide at the same concentration and temperature is

The number of carbon atoms per unit cell of diamond unit cell is

An excess of AgNO3 is added to 100 mL of a 0.01 M solution of dichlorotetraaquachromium(III) chloride. The number of moles of AgCl precipitated would be

Which of the following statements about the interstitial compounds is incorrect?

Antiseptics and disinfectants either kill or prevent growth of microorganisms. Identify which of the following statements is not true

Nylon is an example of:

Nitrobenzene on reaction with conc. _HNO3/H2SO4 at 80-100°C forms which one of the following products?

6.02 × 10²⁰ molecules of urea are present in 100 mL of its solution. The concentration of solution is

Which of the following compounds will not undergo Friedal-Craft’s reaction easily?

Select the wrong statement:

Which one of the following is not a correct statement?

Isogamous condition with non-flagellated gametes is found in

Besides paddy fields, cyanobacteria are also found inside vegetative part of

Megasporangium is equivalent to

Read the following statements (A-E) and answer the question which follows them
(A)In liverworts, mosses, and ferns gametophytes are free-living
(B)Gymnosperms and some ferns are heterosporous
(C)Sexual reproduction in Fucus, Volvox and Albugo is oogamous
(D)The sporophyte in liverworts is more elaboratethan that in mosses
(E) Both, Pinus and Marchantia are dioecious
How many of the above statements are correct ?

Among bitter gourd, mustard, brinjal, pumpkin, china rose, lupin, cucumber, sunnhemp, gram, guava, bean, chilli, plum, petunia, tomato, rose, withania, potato, onion, aloe and tulip how many plants have hypogynous flower?

Interfascicular cambium develops from the cells of

In China rose the flowers are

Lenticels are involved in

Age of a tree can be estimated by

Seed coat is not thin, membranous in

Transition state structure of the substrate formed during an enzymatic reaction is

A phosphoglyceride is always made up of

Pigment-containing membranous extensions in some cyanobacteria are

A major site for synthesis of lipids is

The complex formed by a pair of synapsed homologous chromosomes is called

During seed germination its stored food is mobilized by

Which of the following criteria does not pertain to facilitated transport ?

Which of the metabolites is common to respiration mediated breakdown of fats, carbohydrates and proteins?

Which one of the following statements is correct?

Product of sexual reproduction generally generates

Meiosis takes place in

Advantage of cleistogamy is

Monoecious plant of Chara shows occurrence of

Perisperm differs from endosperm in

Which of the following statements is not true of two genes that show 50% recombination frequency?