1
NEET 2018
MCQ (Single Correct Answer)
+4
-1
Change Language
An object is placed at a distance of 40 cm from a concave mirror of focal length 15 cm. If the object is displaced through a distance of 20 cm towards the mirror, the displacement of the image will be
A
30 cm away from the mirror
B
36 cm away from the mirror
C
30 cm towards the mirror
D
36 cm towards the mirror
2
NEET 2018
MCQ (Single Correct Answer)
+4
-1
Change Language
A toy car with charge q moves on a frictionless horizontal plane surface under the influence of a uniform electric field $$\overrightarrow E $$ . Due to the force q$$\overrightarrow E $$ , its velocity increases from 0 to 6 m s–1 in one second duration. At that instant the direction of the field is reversed. The car continues to move for two more seconds under the influence of this field. The average velocity and the average speed of the toy car between 0 to 3 seconds are respectively
A
2 m s–1, 4 m s–1
B
1 m s–1, 3 m s–1
C
1 m s–1, 3.5 m s–1
D
1.5 m s–1, 3 m s–1
3
NEET 2018
MCQ (Single Correct Answer)
+4
-1
Change Language
A battery consists of a variable number n of identical cells (having internal resistance r each) which are connected in series. The terminals of the battery are short-circuited and the current I is measured. Which of the graphs shows the correct relationship between I and n?
A
NEET 2018 Physics - Current Electricity Question 37 English Option 1
B
NEET 2018 Physics - Current Electricity Question 37 English Option 2
C
NEET 2018 Physics - Current Electricity Question 37 English Option 3
D
NEET 2018 Physics - Current Electricity Question 37 English Option 4
4
NEET 2018
MCQ (Single Correct Answer)
+4
-1
Change Language
A carbon resistor of (47 $$ \pm $$ 4.7) k$$\Omega $$ is to be marked with rings of different colours for its identification. The colour code sequence will be
A
Violet – Yellow – Orange – Silver
B
Yellow – Violet – Orange – Silver
C
Yellow – Green – Violet – Gold
D
Green – Orange – Violet – Gold
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