JEE Main Test 127

Result

JEE Main Test 127

Score
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Rank
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TIME Taken - -

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Weekly Quiz Competition

Question 1
4 / -1

If f : N —> N defined by f(x) = X²+ x + 1,x ∈ N, then f is

A
one-one and onto

B
many-one and onto

C
one-one but not onto

D
None of the above

Solution
Question 2
4 / -1

Let f(x) = (x + 1)² for x ≥ -1. If g(x) is a unction whose graph is the reflection of the graph of f(x) in the line y = x, then g(x) is equal to

A

B

C

D

Solution
Question 3
4 / -1

The values of x and y satisfying the equation

A
x = -1, y = 3

B
x = 3 y = -1

C
x = -0, y = 1

D
x = 1, y = 0

Solution
Question 4
4 / -1

The points (–a, – b), (0, 0), (a, b) and (a², ab) are :

A
Collinear

B
Vertices of a parallelogram

C
Vertices of a rectangle

D
None of these

Solution
Question 5
4 / -1

A
12%

B
7%

C
5%

D
14%

Solution
Question 6
4 / -1

A
The unit of λ is same as that of x and A.

B
The unit of λ is same as that of x but not of A.

C

D

Solution
Question 7
4 / -1

Let p and q be real numbers such that p ≠ 0, p³ ≠ q and p³ ≠ - q. If α and β are non - zero complex numbers satisfying α + β = - p and α³ + β³ = q, then a quadratic equation having α/β and α/β as its roots is

A
(p³ + q)χ² - (p³ + 2q)χ + (p³ + q ) = 0

B
(p³ + q)χ² - (p³ - 2q)χ + (p³ + q ) = 0

C
(p³ - q)χ² - (5p³ - 2q)χ + (p³ - q ) = 0

D
(p³ - q)χ² - (5p³ + 2q)χ + (p³ - q ) = 0

Solution
Question 8
4 / -1

Which has maximum number of atoms?

A
24 g of C

B
56 g of Fe

C
26 g of Al

D
108 g of Ag

Solution
Question 9
4 / -1

A stone is thrown at an angle θ to the horizontal reaches a maximum height H. Then, the time of flight of stone will be

A

B

C

D

Solution
Question 10
4 / -1

A
T² is proportional to R³

B
T² is proportional to R^7/2

C
T² is proportional to R^3/2

D
T² is proportional to R^3/73

Solution