NED 2021

The SI unit for angular displacement is: 

The angle subtended by a semi circle at the center is:

The direction of centripetal acceleration is

Angular speed for daily rotation of earth in radian/hour is:

The dimensions of angular acceleration are:

Centripetal force performs:

How many electrons per second constitute a current of one micro ampere?

A steady current is flowing in a conductor of non-uniform cross-section. The charge passing through any cross-section per unit time is:

In the case of gases, the charge carriers are:

What is meant by 5 A?

Slope of graph between “V” on axis and “I” on the Y-axis is: 

In the circuit shown, there is a current of 3 A in the 2 Ω resistor:

What are the values of current I delivered by and voltage V across the power supply?

Two cars are moving in opposite directions with speed v. What is the magnitude of their relative velocity?

A man in a car moving with a velocity of 36km/h . His speed with respect to the car is?

A body can have a constant velocity when it follows a:

A ball is thrown with 30 m/s in a direction 30° above the horizon. Determine the height to which it rises.

Emf induced in a circuit according to Faraday's Law depend on:

Which of the following quantity remains same in transformer:

Transformer works on principle of:

Eddy Current is produced in a materials when it is

Weber is a unit of

A step up transformer has transformation ratio of 3:2 what is the voltage in the secondary if the primary voltage is 30V:

Waves transfer____ from one place to another?

Two sources of waves are coherent if:

Single wave is called

Size of the molecule depends upon

37 gram of aqueous solution of Ca(OH)₂ contains ___ moles of OH- ions.

Charge to mass ratio of cathod rays does not depend on:

Velocity of photon depends upon: 

Which of the following is the correct order of colors on the basis of increasing wave number?

The element which can extend octet rule is

The hybridization of oxygen in ethe molecule is:

Which of the following species have the same bond order as that of N2-?

Which of the following is a polar molecule?

Chemical equilibrium state is:

Which of the following is a strong Lewis base?

Which of the following is the unit of rate of reaction?

Which of the following cause highest colligative property?

Which of the following enthalpy is always negative?

The oxides of beryllium (BeO) are

 Sodium is not observed in +2 oxidation state because of its

 The location of transition elements is in between

 Propene can exhibit

Only sigma bonds are present in

What will be the products when reactants are alcohol & thionyl chloride in the presence of pyridine?

During SN2 mechanism carbon atom changes its state of hybridization as

Which one of the following is termed benzyl alcohol?

Which one of the following is also known as the lactic acid?

What is the order of kinetics in the SN1 mechanism?

Which one is not a nucleophile?

  I ______ all my childhood in gilgit.

I haven’t had breakfast yet

Pick the correct option

The word ‘LABYRINTH’ means

Choose the correct option

Choose the correct option

________ Oranges are grown in Hunza.

Anusha looks upset, I think she took the criticism _______ heart

Read the passage and answer the following questions:

1 The most beautiful humming birds are found in the West Indies and South America. The crest of the tiny head of one of these shines like a sparkling crown of coloured light. The shades of colour that adorn its breast are equally brilliant. As the bird flits from one object to another, it looks more like a bright flash of sunlight than it does like a living being.  2 But, you ask, why are they called humming birds? It is because they make a soft, humming noise by the rapid motion of their wings—a motion so rapid, that as they fly, you can hardly see that they have wings. One day when walking in the woods, I found the nest of one of the smallest humming birds. It was about half the size of a very small hen and lays egg, and it was attached to a twig no thicker than a steel knitting needle. It seemed to have been made of cotton fibres and was covered with the softest bits of leaf and bark. It had two eggs in it, and each was about as large as a small sugarplum.  3 When you approach the spot where one of these birds has built its nest, it is necessary to be careful. The mother bird will dart at you and try to peck your eyes. Its sharp beak may hurt your eyes most severely and even destroy your sight.

• You can hardly see the hummingbirds have wings because of the:

The most beautiful humming birds are found in the West Indies and South America. The crest of the tiny head of one of these shines like a sparkling crown of coloured light. The shades of colour that adorn its breast are equally brilliant. As the bird flits from one object to another, it looks more like a bright flash of sunlight than it does like a living being.  2 But, you ask, why are they called humming birds? It is because they make a soft, humming noise by the rapid motion of their wings—a motion so rapid, that as they fly, you can hardly see that they have wings. One day when walking in the woods, I found the nest of one of the smallest humming birds. It was about half the size of a very small hen and lays egg, and it was attached to a twig no thicker than a steel knitting needle. It seemed to have been made of cotton fibres and was covered with the softest bits of leaf and bark. It had two eggs in it, and each was about as large as a small sugarplum.  3 When you approach the spot where one of these birds has built its nest, it is necessary to be careful. The mother bird will dart at you and try to peck your eyes. Its sharp beak may hurt your eyes most severely and even destroy your sight.

• The mother bird will dart at you and try to peck your eyes when you:

Choose the correct option from the passage.

Choose the correct one

Choose the correct one

GIRDLE

NOURISH

PURIFIED

I look at everyone and everything around me in the sea of ______ colors vibrating in the room.

Brighten up and refresh your mobile phone with a new ____ , cover or housing.

We wish them a hearty and ______ welcome and long peaceful lives in our parish community.

All submitted data were carefully _____ and checked for completeness.

Stigma:

Zealot:

Wheedle:

Transcend:

Usurp:

C = 1.5b + 67.5

The total cost, C, in dollars, to produce b books is given by the equation above. What is the meaning of 1.50, point, 5 in the equation?

Consider two equations:  AY = 2X + 1 and Y = 2X + 2. For what value of “A” are there no (X,Y) solutions?

If a and b are the two solutions of the above equation, what is the value of a + b?

If the length of and width of a rectangular solid are increased by 20% and the height is increased by 25%, by what percent is the volume of the solid increased?

Which of the following statements is true concerning the equation below?

3(5 – 2x) = 6(2 – x) + 3

A white cube has a volume of 27. If a red circle of radius 1 is painted on each face of the cube, what is the total area of the surface of the cube that is NOT red?

A(1, 1), B(5, 3), and C(5, 9) are three points in the xy-plane. If AB is the diameter of Circle 1 and BC is the diameter of  Circle 2, what is the slope of the line that goes through the centers of the two circles?

Refer to the following table to answer two of the below questions.

What is the average (arithmetic mean) number of students per class?

If the average of 2, 7, and x is 12. What is the value of x?

Let (h, k) be the center and r the radius of the circle whose equation is given above. What is the value of  h+k+r?

The product of the two complex numbers a+4i and 9 –bi is a real number and if a = 6, what is value of b?

Which of the following numbers can be product expressed as the product of three different integers greater than 1?

I.   25

II. 36

III. 45

How many four-digit numbers have only even digits?

If x− 1 /3 =k and k = 3, what is the value of x ?

For i = (−1)^1/2 , what is the sum (7 + 3i ) + (−8 + 9i ) ?

b=2.35 + 0.25x 

c = 1.75 + 0.40x

 In the equations above, b and c represent the price per pound, in dollars, of beef and chicken, respectively, x weeks after July 1 during last summer. What was the price per pound of beef when it was equal to the price per pound of chicken?

3x + 4y = −23

2y − x= −19

What is the solution ( x,y) to the system of equations above?

If ( ax + 2)( bx + 7) = 15x^2 + cx+ 14 for all values of x, and a +b =8, what are the two possible values for c ?

Q 12: Which of the following numbers is NOT a solution of the inequality 3x−5 ≥4x −3 ?

A food truck sells salads for $6.50 each and drinks for $2.00 each. The food truck’s revenue from selling a total of 209 salads and drinks in one day was $836.50. How many salads were sold that day?

For a polynomial p(x), the value of

p(3) is −2.

Which of the following must be true about p(x)?

Q 18: The total area of a coastal city is 92.1 square miles, of which 11.3 square miles is water. If the city had a population of 621,000 people in the year 2010, which of the following is closest to the population density, in people per square mile of land area, of the city at that time?

A customer’s monthly water bill was $75.74. Due to a rate increase, her monthly bill is now $79.86. To the nearest tenth of a percent, by what percent did the amount of the customer’s water bill increase?

A gardener buys two kinds of fertilizer. Fertilizer A contains 60% filler materials by weight and Fertilizer B contains 40% filler materials by weight. Together, the fertilizers bought by the gardener contain a total of 240 pounds of filler materials. Which equation models this relationship, where x is the number of pounds of Fertilizer A and y is the number of pounds of Fertilizer B?

2x^2 − 4x = t

In the equation above, t is a constant. If the equation has no real solutions, which of the following could be the value of t?