The bimetallic strip made up of aluminium and copper, when heated bends in the direction shown below. Which metal expands more when the two are heated at the same temperature?
A Aluminium expands more than copper.
B Copper expands more than aluminium.
C Both aluminium and copper expand by the same amount.
D Neither aluminium nor copper expands.
Look at the given figure. It shows lunar eclipse. Where is the Earth in it?
A simple question , but , Yes! it confuses if not read the question correctly.
Refer to the given figure and select the correct option.
A X type of joint shows no movement at all.
B Y type of joint is also present in our elbow.
C X type of joint is also found in between vertebrae.
D Both (A) and (B)
Which of the following statements is true?
A The image formed by a pinhole camera is inverted because light travels in a straight line.
B Light does not change its direction on reflection.
C As we move the object away from the light source, the shadow of the object becomes smaller.
D Reflection is possible only from polished surface.
Both A and C are true
How many meaningful words can be formed from the letters T, E, N, O using each letter only once?
D None of these