Which of the following instrument is used for observing people/things without letting the people know of it.

Kaleidoscope

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Periscope

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Bioscope

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Magnoscope

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B Periscope
Periscope may be used for observing people/things without letting the people know of it. Reflection from the two mirrors enables us to see objects which are not visible directly.

Suggest Corrections

Similar questions

• Do you know these people? What instruments do they play?

Join BYJU'S Learning Program