Jharkhand PECE Sample Questions
Candidates can have a look at the Jharkhand PECE sample questions here to get an idea about the kind of questions that will be asked in the exam.
1. A convex lens forms a real and inverted image of a needle at a distance of 50 cm from it. Where is the needle placed in front of the convex lens, if the image is equal to the size of the object?
- +0.5 m
- -0.5 m
- +0.25 m
- -0.25 m
2. A cylindrical conductor of length I and a uniform area of cross-section A has resistance R. Another conductor of length 2l and resistance R of the same material has an area of cross-section?
3. Magnesium ribbon burns with a dazzling white flame and changes into a white powder. This powder is called
- Magnesium oxide
- Magnesium carbonate
- Magnesium hydroxide
- Magnesium nitrate
4. The decomposition of vegetable matter into compost is an example of ------------------- reaction.
- Endothermic
- Exothermic
- Displacement
- Double displacement
5. 2 women and 5 men can together finish an embroidery work in 4 days while 3 women and 6 men can finish in 3 days. Find the number of days taken by one woman alone to finish the work.
- 20 days
- 18 days
- 15 days
- 28 days
6. The average of 40 numbers is 35. If two of the numbers 84 and 62 are not included, then the average of the remaining number is