1
JEE Main 2020 (Online) 6th September Morning Slot
+4
-1
A ray of light coming from the point (2, $$2\sqrt 3$$) is incident at an angle 30o on the line x = 1 at the point A. The ray gets reflected on the line x = 1 and meets x-axis at the point B. Then, the line AB passes through the point:
A
(3, -$$\sqrt 3$$)
B
(4, -$$\sqrt 3$$)
C
$$\left( {4, - {{\sqrt 3 } \over 2}} \right)$$
D
$$\left( {3, - {1 \over {\sqrt 3 }}} \right)$$
2
JEE Main 2020 (Online) 4th September Evening Slot
+4
-1
If the perpendicular bisector of the line segment joining the points P(1 ,4) and Q(k, 3) has y-intercept equal to –4, then a value of k is:
A
$$\sqrt {14}$$
B
-4
C
–2
D
$$\sqrt {15}$$
3
JEE Main 2020 (Online) 4th September Morning Slot
+4
-1
Two vertical poles AB = 15 m and CD = 10 m are standing apart on a horizontal ground with points A and C on the ground. If P is the point of intersection of BC and AD, then the height of P (in m) above the line AC is:
A
10/3
B
5
C
20/3
D
6
4
JEE Main 2020 (Online) 3rd September Evening Slot
+4
-1
If a $$\Delta$$ABC has vertices A(–1, 7), B(–7, 1) and C(5, –5), then its orthocentre has coordinates :
A
(–3, 3)
B
(3, –3)
C
$$\left( {{3 \over 5}, - {3 \over 5}} \right)$$
D
$$\left( { - {3 \over 5},{3 \over 5}} \right)$$
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