GCSE Physics Question Analysis Topic: Physics - Short Questions
Exam Questions:
1) Draw a labelled ray diagram of a reflecting telescope. Mention its two advantages over the refracting telescope.
2) Mention the two characteristic properties of the material suitable for making core of a transformer.
Answers:
For GCSE Physics, you should know:
1) (a) Reflecting telescopes have the following advantages over refracting telescopes: 1. Because a big aperture is not needed to concentrate incoming light, they are simpler to produce.
(b) Because there is no spherical aberration, a clear image is produced.
![broken image](http://custom-images.strikinglycdn.com/res/hrscywv4p/image/upload/c_limit,fl_lossy,h_9000,w_1200,f_auto,q_auto/10470115/510491_704923.png)
2) Low hysteresis loss / high permeability and susceptibility as well as low retentivity are the two defining characteristics of the material that makes a good transformer core.
Work hard for your GCSE Physics examination!
End of analysis. Great!
![broken image](http://custom-images.strikinglycdn.com/res/hrscywv4p/image/upload/c_limit,fl_lossy,h_9000,w_1200,f_auto,q_auto/10470115/189997_51541.png)