Questions

An object of 1.2 cm height is placed 30 cm before a concave mirror of focal length of 20 cm toget a real image at a distance of 60 cm from the mirror. What is the height of the image formed?

In which of the following mentioned activities is the potential energy (P.E) converted into kinetic energy(K.E)?

An echo is returned in 3 s. What is the distance of the reflecting surface from the source, considering the speed of sound as 342 ms-1?

Pick the odd one out from the following:

The Prime Minister of India unveiled a 112-feet bust of 'Lord Shiva in an Adiyogi pose' at the Isha Yoga centre in 2017. In which city is this statue located?

Allergy Screening Blood Test for human beings does not include ___.

The question below consists of a set of labelled sentences. These sentences, when properly sequenced form a coherent paragraph. Select the most logical order of sentences from among the options.

P: Young boys and girls seem to have become inordinately addicted to these sites.
Q: The parents, teachers and the government must look into the problems being caused by these networking sites and must formulate a strategy either to curb or completely stop its fast growing negative influence on the minds of our youth.
R: Smart-phones, computers, social media, internet and networking sites such as Facebook and Twitter have become source of major distractions for students.
S: They are thoughtlessly and uselessly wasting their precious time on these sites.

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.

At this moment that (1)/ terrible door burst noisily open and (2)/ banged for the wall. (3)/No Error (4)