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Engineering
3 weeks ago

1. 121

2. 61

3. 74

4. 101

N Neha Gupta
Answered 2 weeks, 6 days ago
This is  the figure.   The correct answer should be 121. As the logic here is , the outer circle figures should be added and their perfect square should be there in the inner circle. I.e. (2+6=8) and the 8^2=64. Hence, (8+3=11) and its perfect square is 121.
Engineering
3 weeks ago
1. Has been taught

2. Is taught

3. Is being taught

4. Has been teaching

A Avantika banode
Answered 2 weeks, 5 days ago

4

Engineering
3 weeks ago
1. Sri Lanka

3. Pakistan

4. Singapore

N Neha Gupta
Answered 2 weeks, 6 days ago
The correct answer option is 4 i.e. Singapore as except Singapore , rest 3 countries lie on India’s sub continent.
Engineering
3 weeks ago

A.The reasons why piracy flourishes are two.

B. The problem is not with the laws but with enforcement.

C. Somehow they still do not realize the seriousness of the crime or its economic ramifications.

D. I have been a part of a drive against copyright theft for over two decades now.

E. The first is the lack of awareness amongst the enforcement agencies.

2. AECBD

3. DBAEC

4. ABDEC

N Neha Gupta
Answered 2 weeks, 6 days ago
The correct option will be option 3. After reading the sentences, it should be clear that AE should definitely come after each other because they form a pair. There are two options which suffice this i.e. 2 and 3. Now, starting with D helps to locate the topic on which these lines have been written i.e. copyright theft and A states the reason.
Engineering
3 weeks ago
1.  -5
2. 6
3. 1
4. -3

A Abhishek Sahu
Volume of parallelopiped,  Here  and,  Given that V is 546, put it in the above equation. Option (4) is correct
Engineering
3 weeks ago

1) fast driving

2) drinking and driving

3) not following traffic regulations

4) giving signals

A Abhishek Sahu
Answered 2 weeks, 6 days ago
Option (4) is correct Because rest options are the reason for car accidents.
Engineering
3 weeks ago

$\int_{0}^{\pi /2} \frac{1}{1+\sqrt{tanx}} dx$

1. $\pi$

2. $\pi$/2

3. $\pi$/4

4. 3$\pi$/2

A Abhishek Sahu
Answered 2 weeks, 6 days ago
...............................(1) We also know that,  Using this property in equation (1) ,  .....................(2) Adding equation (1) and (2),  Option (3) is correct
Engineering
3 weeks ago
1. x2+y2-3x+1=0
2. x2+y2-x+5=0

3. x2+y2-8x+6y=8

4. x2+y2-4x+8y=7

A Abhishek Sahu
Answered 2 weeks, 6 days ago
General equation of circle ,  Now find the points of intersection of the two circles. At the intersection,              Putting the value of x1 in the equation of any of the two circle to find y1. Now we have 3 points through which the circle is passing,     ,       ,     Now putting these points in general equation we will have 3...
Engineering
3 weeks ago
1. $\frac{x}{\sqrt{1+x^{2}}}$
2. $\frac{1}{\sqrt{1+x^{2}}}$
3. $\frac{\sqrt{1+x^{2}}}{x}$
4. $\sqrt{1+x^{2}}$

A Abhishek Sahu
Answered 2 weeks, 6 days ago
Let  Using Pythagoras theorem,  Option (2) is correct
Engineering
3 weeks ago

artificial chemical means. The most common agent used today is formaldehyde, which is infused to replace body fluids.

The second sentence can best be replaced by:

1) Body fluids are replaced by formaldehyde, the most widely used agent today.

2) The most common agent "body fluids" are used to replace formaldehyde.

3) Formaldehyde is most widely used today along with the body fluids.

4) To replace body fluids the most common agent is to be used.

N Neha Gupta
Answered 2 weeks, 6 days ago
The correct answer is option 1 as it covers the necessary details clearly. In option 2, most common agent is mentioned as ‘body fluids’ which is wrong. In option 3, it is written that formaldehyde is used with body fluids which is wrong as it replaces body fluids. In option 4, formaldehyde is not mentioned.
Engineering
3 weeks ago

(1+$\omega^{2}$-$\omega$)(1-$\omega^{2}$+$\omega$) is

1. 4

2. $\omega$

3. 2

4. Zero

A Abhishek Sahu
Answered 2 weeks, 6 days ago
With the help of 2 properties of cube roots of unity, we can solve this question. Property 1,  Property 2,  Now we have to find the value of (1+-)(1-+) Using property 2,  Now use property 1, Option (1) is correct
Engineering
3 weeks ago
1. A thioether

2. A secondary alcohol

3. A primary alcohol

4. A ether

A Abhishek Sahu
Answered 2 weeks, 6 days ago
A haloalkane on treatment with NaOR forms ether. Option (4) is correct
Engineering
3 weeks ago

1. $1^{0}$ amine with same number of carbons

2. $1^{0}$ amine with one carbon less

3. $2^{0}$ amine with one carbon less

4. $1^{0}$ amine with one carbon more

A Abhishek Sahu
Answered 2 weeks, 6 days ago
Hofmann rearrangement is the organic reaction of a primary amide to a primary amine with one fewer carbon atom. Option (2) is correct
Engineering
3 weeks ago
1. Two 2-centre 3-electron bonds and four 3-centre 2 -electron bonds
2. Four 2-centre 3-electron bonds and two 3-centre 2 -electron bonds

3. Four 2-centre 2-electron bonds and two 3-centre 2 -electron bonds

4. Two 2-centre 2-electron bonds and four 3-centre 2 -electron bonds

A Abhishek Sahu
Answered 2 weeks, 6 days ago
Four 2-centre 2-electron bonds -   4 B-H Two 3-centre 2 -electron bonds  - 2 B-H-B (one Electron of B and on electron H) Option (3) is correct Diborane structure involves Four 2-centre 2-electron bonds and two 3-centre 2 -electron bonds
Engineering
3 weeks ago
1. Na

2. Mg

3. Al

4. K

A Abhishek Sahu
Answered 2 weeks, 6 days ago
E.C. of all the elements. 1) Na = Ne 3s1 2) Mg = Ne 3s2 3) K = [Ar] 4s1 4) Al  = [Ne] 3s2 3p1   Now to compare second ionization energy the conf. will be   1) Na = Ne 2) Mg = Ne 3s1 3) K = [Ar] 4) Al  = [Ne] 3s2   Now Sodium and Potassium have achieved their stable conf. i.e noble gas conf. or now are fully filled and thus more stable than Mg and Al. Now in K and Na, Na will have highest second...
Engineering
3 weeks ago
1. 8

2. 6

3. 4

4. 2

A Abhishek Sahu
Answered 2 weeks, 6 days ago
This is a charge balancing question.  Fe exists in two forms mainly Ferrous (Fe2+) and Ferric (Fe3+). Let there are 100 oxygen atoms and x number of Fe3+ atoms and 96-x number of Fe2+ atoms. Balance charge The percentage of  Fe3+ ions is,     Option (1) is correct.
Engineering
3 weeks ago
1. 2T

2. T

3. 3/2T

4. 3T

A Abhishek Sahu
Answered 2 weeks, 6 days ago
Radioactive decay,  Where N(t) is the amount of sample which remains after time t. Given that 75% of the sample has decayed, hence the remaining will be 25% of initial,  Also  Take loge both sides and solve Option (1) is correct
Engineering
3 weeks ago

What should be the angle between the axes of the polarizer, so that the intensity of the beam coming out of analyzer is 3/8 I

1. 45 degree

2. 30 degree

3. 60 degree

A Abhishek Sahu
Answered 2 weeks, 6 days ago
When unpolarized light is passed through the polarizer the intensity becomes half, Hence after passing through polarizer equals  Now after coming out of the analyzer, the intensity becomes  Use Malus Law,  Option (2) is correct.
Engineering
3 weeks ago

1) Nurture

2) Nature

3) Return

4) Renter

A Abhishek Sahu
Answered 2 weeks, 6 days ago
Nature Option (2) is correct.
Engineering
3 weeks ago

A potential difference of 1V is applied across the other diagonal. What will be the current in the resistor along the diagonal?

1. 0.5 A

2. 1 A

3. 5 A

4. Zero