## MCQs on Series and Parallel Circuits

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## MCQs on Series and Parallel Circuits

1. A certain circuit is composed of two parallel resistors. The total resistance is 1,403 Ω. One of the resistors is 2 Ω. The other resistor value is
(a) 1,403 Ω
(b) 4.7 kΩ
(c) 2 kΩ
(d) 3,403 Ω

2. A voltage divider consists of ot two 100 kΩ resistors and a 12 V source. What will the voltage be if a load resistor of 1 MΩ is connected to the output?
(a) 0.57 V
(b) 6 V
(c) 12 V
(d) 5.7 V

3. The parallel combination of a 1.5 kΩ resistor and 470 Ω resistor is in series with the parallel combination of five 1 kΩ resistors. The source voltage is 50 V. The percentage of the load current through any single 1 kΩresistor is
(a) 25 %
(b) 20 %
(c) 100 %
(d) 50 %

4. On which of the following voltage range settings will a voltameter present minimum load on a circuit?
(a) 1 V
(b) 50 V
(c) 500 V
(d) 1,000 V

5. A Voltage divider consists of two 68 kΩ resistors and a 24 V source. The unknown output voltage is
(a) 12 V
(b) 24 V
(c) 0 V
(d) 6 V

6. Two 3.3 kΩ resistors are in series combination are in parallel with a 4.7 kΩ resistor. What will be the voltage across the 4.7 kΩ resistors if the voltage across one of the 3.3 kΩ resistors is 12 V
(a) 24 V
(b) 12 V
(c) 0 V
(d) 6 V

7. The 1.2 kΩ resistors are in series and this series combination is in parallel with a 3.3 3.3 kΩ resistor. The total resistance is
(a) 138 Ω
(b) 1,389 Ω
(c) 5,700 Ω
(d) 880 Ω

8. A certain voltage divider consists of three 1 kΩ resistors in series. Which of the following load resistors will have the least effect on the output voltage?
(a) 1 MΩ
(b) 100 kΩ
(c) 1 kΩ
(d) 330 Ω

9. A certain Wheatstone bridge has the following resistor values: R1= 10 kΩ, R2 = 720 Ω and R4 = 2.4 kΩ. The unknown resistance is
(a) 24 Ω
(b) 2.4 Ω
(c) 300 Ω
(d) 3,000 Ω

10. In a certain five-step R/2R ladder network, the smallest resistor value is
(a) Indeterminable
(b) 2 kΩ
(c) 10 kΩ
(d) 20 kΩ

## NEET Chemistry MCQ Chapter Wise PDF Download | Chemistry NEET Objective Questions

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## Topic-wise MCQs for NEET Chemistry

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## NEET Biology MCQ Chapter Wise PDF Download | Biology Multiple Choice Questions for NEET

NEET is a Prestigious Medical Entrance Exam held across the country. It is an Objective type exam in which 50% is dedicated to biology. That itself shows how crucial is to prepare Biology to Score well in NEET. Check out the NEET Multiple Choice Questions for Biology and prepare well for the exam. You can rely on them during your exam preparation as they are prepared by subject experts after ample research. MCQ Questions of NEET Biology prevailing are as per the latest syllabus guidelines.

## List of MCQs for NEET Biology

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## Mirror Formula MCQs

NEET  Physics is the scoring paper in the medical entrance examination. Here, you will discover the NEET Physics MCQ Questions for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Physics objective questions on air pollution and improve your subject knowledge & problem-solving skills along with time management. NEET Physics Mirror Formula Multiple Choice Questions make you feel confident in answering the question in the exam & increases your scores to high.

## MCQ on Mirror Formula

1. A convex mirror of focal length f forms an image which is 1/n times the object. The distance of the object from the mirror is
(a) (n-1)f
(b) (n-1/n) f
(c) (n+1/n) f
(d) (n+1) f

2. Consider a concave mirror of focal length 50 cm. Where should the object be placed so that its image is twice the size of the object and inverted
(a) 60 cm
(b) 70 cm
(c) 75 cm
(d) 55 cm

3. An object 2 cm high is placed at a distance of 16 cm from a concave mirror, which produces 3 cm high inverted image. What is the focal length of the mirror?
(a) -10 cm
(b) -9.6 cm
(c) 9.6 cm
(d) 8 cm

4. An erect image 3 times the size of the object is obtained with a concave mirror of radius of curvature 36 cm. What is the position of the object?
(a) -12 cm
(b) 5 cm
(c) 10 cm
(d) -21 cm

5. An object is placed at infinity in front of the convex mirror of radius of curvature 40 cm. How far is the image behind the mirror?
(a) 20 cm
(b) 25 cm
(c) 30 cm
(d) 35 cm

6. The image formed by a convex mirror of focal length 30cm is a quarter of the object. What is the distance of the object from the mirror?
(a) -90 cm
(b) 60 cm
(c) -75 cm
(d) -60 cm

7. Convex mirror is used to form an image of the object. Which of the following statements is wrong?
(a) The image is erect
(b) The image is diminished in size
(c) The image is real
(d) The image lies between the pole and the focus

Answer: (c) The image is real

8. A lens having a focal distance of 30 cm is placed in front of an object, which is located at 1m from it. Where is an image of the object located?
(a) 40 cm
(b) 42.85 cm
(c) 52 cm
(d) 60 cm

9. The focal length of a concave mirror is f and the distance from the object to the principle focus is x. The ratio of the size of the image to the size of the object is
(a) (f + x)/f
(b) f/x
(c) f2/x2

10. In a concave mirror experiment, an object is placed at a distance x1 from the focus and the image is formed at a distance xfrom the focus. The focal length of the mirror would be
(a) x1x2
(b) (x1+x2)/2
(c) √x1x2
(d) √x1/x2

## NEET Physics MCQ Chapter Wise PDF Download | Physics Multiple Choice Questions for NEET

NEET Aspirants feel Physics as the most challenging compared to other sections. To help you stand out from the rest of the crowd and perform well in the Entrance Exam NEET we have listed MCQ Questions for NEET Physics that are likely to appear. Multiple Choice Questions of NEET Physics are prepared adhering to the latest syllabus guidelines. Score well in the exam by taking help from the Objective Questions of NEET Physics.

## List of MCQs for NEET Physics

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## Optics MCQs for NEET

NEET  Physics is the scoring paper in the medical entrance examination. Here, you will discover the NEET Physics MCQ Questions for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Physics objective questions on air pollution and improve your subject knowledge & problem-solving skills along with time management. NEET Physics Optics Multiple Choice Questions make you feel confident in answering the question in the exam & increases your scores to high.

## MCQ on Optics

1. Calculate the velocity of the light ray in the medium, if the critical angle for TIR from medium to the vacuum is 30°.
(a) 2 x 108 m/s
(b) 1.5 x 108 m/s
(c) 0.75 x 108 m/s
(d) 3 x 108 m/s

Answer: (b) 1.5 x 108 m/s

2. Which of the following is the combination that is used in the formation of achromatic lenses?
(a) 1 convex and 1 plane mirror
(b) 2 convex lenses
(c) 1 convex and 1 concave lens
(d) 2 concave lenses

Answer: (c) 1 convex and 1 concave lens

3. How does magnifying power change for an objective lens if the focal length of the objective lens is increased?
(a) The microscope will decrease but for the telescope, it will increase
(b) The microscope will increase but for the telescope, it decreases
(c) The microscope and telescope will increase
(d) The microscope and telescope will decrease

Answer: (a) The microscope will decrease but for the telescope, it will increase

4. What is the power of the combination of lenses, if two thin lenses of focal length f1 and f2 are in contact and coaxial.

Answer: (d) $$\frac{f_{1}+f_{2}}{f_{1} f_{2}}$$

5. Following is the graph explaining the variation of v with respect to u for a mirror. What is the value of points above the marking P on the curve for values of v

(a) Smaller than f
(b) Larger than 2f
(c) Smaller than 2f
(d) Smaller than 2

6. What is the magnification produced by the plane mirror?
(a) Zero
(b) +1
(c) -1
(d) Between 0 and +∞

7. The image formed by the convex mirror is $$\frac{1}{n}$$ times the object and has a focal length f. What is the distance of object from the mirror?

8. Which of the following graph is correct when the real image distance v formed by a convex lens is measured for different object distance u.

9. What happens to the refractive index on heating the liquid?
(a) Increases
(b) Decreases
(c) Remains unchanged
(d) Increases or decreases depending on the rate of heating

10. Calculate the speed of light in water if the refractive index of water is 1.33
(a) 4 x 108 m/s
(b) 2.25 x 108 m/s
(c) 1.33 x 108 m/s
(d) 3 x 108 m/s

Answer: (b) 2.25 x 108 m/s

11. What is hypermetropia?
(a) Bad vision due to age
(b) Short-sightedness
(c) Long-sightedness
(d) Formation of a layer on the eye