सामान्य ज्ञान : आविष्कार

पदार्थों की कठोरता को मापने के साधन को कहा जाता , The instrument used to measure the hardness of substances is called

पदार्थों की कठोरता को मापने के साधन को कहा जाता

The instrument used to measure the hardness of substances is called
A. ल्युसीमीटर (lucimeter)

B. सेरौनोग्राफ (seronograph)

C. ड्यूरोमीटर (Durometer)

D. हाइग्रोमीटर (hygrometer)



Correct Answer :

C. ड्यूरोमीटर



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