NEET (National Eligibility cum Medical Entrance Test) Physics: Questions 1084 - 1087 of 2142

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Question number: 1084

» Electromagnetic Induction & Alternating Currents » LCR Series Circuit

MCQ▾

Question

In a circuit L, C and R are connected in series with an alternating voltage source of frequency f. The current leads the voltage by 45°. The value of C is

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 1085

» Ray Optics » Power of a Lens

MCQ▾

Question

A convex lens when placed in the first position forms a real image of an object on a fixed screen. The distance between the object and the screen is 75 cm. On displacing the lens from first position by 25 cm to the second position again a real image is formed on the screen. Then the focal length of the lens is

Choices

Choice (4) Response

a.

16.7 cm

b.

25.0 cm

c.

33.3 cm

d.

50.3 cm

Question number: 1086

» Ray Optics » Deviation and Dispersion of Light by a Prism

MCQ▾

Question

A prism having an apex angle 4° and refraction index 1.5 is located in front of a vertical plane mirror as shown in figure. Through what total angle is the ray deviated after reflection from the mirror?

A prism and vertical plan mirror

A Prism and Vertical Plan Mirror

A prism having an apex angle 40 and refractive index 1.5 is located in front of a vertical plan mirror shown in figure.

Choices

Choice (4) Response

a.

176°

b.

c.

178°

d.

Question number: 1087

» Ray Optics » Mirror Formula

MCQ▾

Question

A short linear object of length b lies along the axis of a concave mirror of focal length f at a distance u from the pole of the mirror. Find the approximate size of the image.

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

All of the above

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