NEB Question Browser

A magnet, as shown in the figure, if inserted into the solenoid, the needle of the galvanometer is deflected. What could be the reason for this?

i. Motor effect

ii. Electromagnetic induction

iii. Mutual induction

iv. Magnetic effect of current

Which principle does the given device work?

A student observed a spoon bent when it is dipped in a glass having water. S/he observed a fish kept in aquarium larger than actual size when s/he observed from outside. By which reasons shows condition observed?

i. Due to the velocity of light is more in water than in air

ii. Due to the velocity of light changes when it enters into media having different densities

iii. Due to the shape of the object changes inside water

iv. Due to the size of the object changes inside water

What is the gravitationl force of attraction exerted between A and B in the given figure?

i.

ii.

iii.

iv.

Name an instrument which works on the basis of atmospheric pressure.

Write the IUPAC name of the given compound.

Choose the best alternative of the following questions and write in the answer sheet.

a. What is a variable that is kept constant during the research period by the researcher called?

i. Independent variable

ii. Dependent variable

iii. Controlled variable

iv. Extraneous variable

Which principle is the submarine based on?

i. Pascal's law

ii. Archimedes' principle

iii. Law of flotation

iv. Newton's law

Which of the following processes occurs during smelting?

i. Grinding

ii. Refining

iii. Reduction

iv. Oxidation

Why are detergents called 'soapless soap'?

i. Do not produce lather with hard water like ordinary water.

ii. Have the same chemical composition as soap.

iii. Exhibits cleansing properties similar to soap and are effective even in hard water.

iv. Exhibits cleansing properties like soap but chemically different from soap.

Write a difference between analogue signal and digital signal.

Write a difference between mass and weight.

Which transformer should you use to safely operate the fan?

.A student wants to purify silver by the electrorefining process. He used as an electrolyte and connected pure silver to the positive terminal and impure silver to the negative terminal. What mistake has he made in the setup?

Write a major risk factor of causing a heart attack.

The electricity supply in laboratory is 110 V. You have a small fan that operates on 12 V. You have the following two types of transformers.

What is the cause of systolic blood pressure?

i. Due to excessive pressure created in the heart

ii. Due to pressure produced in the left ventricle of the heart is transmitted to the artery

iii. Due to contraction of the artery at the time of contraction of left ventricle

iv. Pressure produced at the time of contraction of ventricle

Which of the following organisms has the scientific name Cordyceps sinensis?

i. Mugwort

ii. Malabar nut

iii. Caterpillar fungus

iv. Turmeric

What is in the given chemical equation?

i.

ii.

iii.

iv.

In the figure, heights of four different mountains are given. Among them, which mountain has the least acceleration due to gravity?