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BCECE 2015 Physics Question paper with answer key pdf conducted on May 17 in Forenoon Session 9 AM to 10:30 AM is available for download. The exam was successfully organized by Bihar Combined Entrance Competitive Examination Board. The question paper comprised a total of 100 questions.
BCECE 2015 Physics Question Paper with Answer Key PDFs Forenoon Session
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BCECE Questions
1. A ray of light is incident normally on one face of an equilateral prism (μ=\(\frac{3}{2}\)). The angle of deviation is:
A ray of light is incident normally on one face of an equilateral prism (μ=\(\frac{3}{2}\)). The angle of deviation is:
30°
60°
45°
75°
2. If the length of a filament of a heater is reduced by 10% , the power of the heater will:
If the length of a filament of a heater is reduced by 10% , the power of the heater will:
Increase by about 9%
Decrease by about 10%
Increase by 11%
Decrease by 19%
3. The pattern is observed in which experiment?
The pattern is observed in which experiment?
Increase by about 9%
Decrease by about 10%
Increase by 11%
Decrease by 19%
4. An air doubble is inside water (μ=\(\frac{4}{3}\)). At what distance from the air bubble should a point object be placed so as to form a real image at the same distance from the dubble? (r is the radius of curvature of the bubble)
An air doubble is inside water (μ=\(\frac{4}{3}\)). At what distance from the air bubble should a point object be placed so as to form a real image at the same distance from the dubble? (r is the radius of curvature of the bubble)
2R
4R
3R
The air bubble cannot form a real image
5. Young's double slit experiment is first performed in air and then in a medium other than air. It is found that the 9th bright fringe in the medium lies where the 5th dark fringe lies in the air, then the refractive index of the medium is:
Young's double slit experiment is first performed in air and then in a medium other than air. It is found that the 9th bright fringe in the medium lies where the 5th dark fringe lies in the air, then the refractive index of the medium is:
1.43
1.63
1.5
1.7
6. A beaker is a field with water (μ=\(\frac{4}{3}\)) up to a height of 33.25cm. A concave mirror is placed 15 cm above the water level and the image of an object placed at the bottom is formed 25cm below the water level. The focal length of the mirror is nearly :
A beaker is a field with water (μ=\(\frac{4}{3}\)) up to a height of 33.25cm. A concave mirror is placed 15 cm above the water level and the image of an object placed at the bottom is formed 25cm below the water level. The focal length of the mirror is nearly :
- 6 cm
- 18 cm
- 12 cm
- 24 cm
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